Effective Nuclear Charge by Shaun Bock

Multiple Choice

2017-09-25 14:17:04 UTC

Which element, O or Be has a greater nuclear charge and why?

A. O, because it has a bigger radius.
B. Be, because it has less protons.
C. O, because it has more protons.
D. Be, because it has a smaller radius.

(answer: C)

Multiple Choice by Vandanaa

2017-09-25 14:17:59 UTC

Out of iodine and Xenon, which element has the most effective nuclear charge?

a) I, because it has more electronegativity
b) I, because it has less electrons in its "p" subshell
c) Xe, because it has a greater atomic mass
d) Xe, because it has more protons resulting in a greater effective nuclear charge

Multiple Choice

2017-09-25 14:20:13 UTC

(Abby Brewer)
Which of the following elements has a greater nuclear charge?

a. Li
b. Be
c. C
d. N

Free Response

2017-09-25 14:20:14 UTC

(Avery Lowrance) Why does Se have a greater effective nuclear charge than As?
- Because Se has a larger number of protons than As, creating a greater electrostatic attraction and therefore, a greater nuclear charge.

Multiple Choice

2017-09-25 14:20:27 UTC

How do you determine if a question is asking about nuclear charge?
a) If the elements are in the same period
b) If the elements are in the same column
c) If the elements are adjacent
d) If the elements are different substances (solid, liquid, gas) at room temperature.

Free Response

2017-09-25 14:21:27 UTC

Explain why effective nuclear charge increases as you go right on the periodic table.

Multiple Choice

2017-09-25 14:21:31 UTC

Which puts the elements in order of increasing nuclear charge?

A= Rb, Ti, Si, F
B= Ti, Si, Rb, F
C= Rb, Ti, F, Si
D= F, Si, Ti, Rb

Multiple Choice

2017-09-25 14:22:42 UTC

(Avery Lowrance)
Which element has a greater nuclear charge, Si or Al?
A. Si, because it has more electron-electron repulsions
B. Be because it has less protons
C. Be because it has a greater core charge
D. Si, because it has more protons within the nucleus

Free Response

2017-09-25 14:22:53 UTC

Does F or C have a greater nuclear charge and Why?

F because it has a greater number of protons, which allows for a greater nuclear charge between the protons and electrons.

Free Response by Vandanaa

2017-09-25 14:23:23 UTC

Why does Rn have a less effective nuclear charge compared to Xe?

Answer: Rn has more energy levels than Xe, resulting in electrons being father away from the nucleus. This creates a decreasing electrostatic attraction compared to Xe. So, it has a less effective nuclear charge compared to Xe as well.

Multiple Choice Ell Henderson

2017-09-25 14:23:44 UTC

Out of these isoelectric elements which one has the greatest effective nuclear charge?
A.Rb

B.Mn

C.Ne
D.I
answer: I

Free Response

2017-09-25 14:24:33 UTC

Does Gallium have a stronger nuclear charge than Arsenic?
No, because it has less protons.

Multiple Choice

2017-09-25 14:24:40 UTC

Which ion has the greatest nuclear charge?
A.

Why I missed it...

2017-09-25 14:24:51 UTC

I messed up nuclear charge with electrostatic attraction.

Free response- Spencer

2017-09-25 14:25:17 UTC

Element X has a greater nuclear charge than Ca. Both are in the same energy level. Which element could X be? Correct answers Se, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, and Kr.

Free Response

2017-09-25 14:25:19 UTC

(Abby Brewer)
What determines how great the nuclear charge is?

Answer: The number of protons determine how great the nuclear charge is. The more protons, the greater the nuclear charge.

Explanation

2017-09-25 14:26:08 UTC

I missed these because I'm brain dead and overthink everything lol.

Multiple Choice: Payton Tucker

2017-09-25 14:26:24 UTC

Put the elements in order of increasing nuclear charge?
a. Sc, V, Co, Sn
b. V, Sc, Co, Sn
c. Sc, Co, Sn, V
d. Sn, Co, V, Sc

Answer: a

Multiple Choice - Lizzie Maguire

2017-09-25 14:26:47 UTC

Which elements are listed in increasing nuclear charge?
A. AlB. O
C. BeD. Te

Multiple Choice - Grace Kisting

2017-09-25 14:26:49 UTC

What element has a greater nuclear charge?

A. P
B. Ne
C. F
D. As

Multiple Choice - Garrett Balog

2017-09-25 14:27:00 UTC

Which has the elements in the right order of increasing nuclear charge?

A. Y - Ga - Ge - Cu
B. Ge - Ga - Cu - Y
C. Cu - Ge - Y - Ga
D. Y - Cu - Ga - Ge

Free Response - Caitlin Mann

2017-09-25 14:27:08 UTC

Which has a less effective nuclear charge and why. O or Ne?

Explanation

2017-09-25 14:28:18 UTC

I did well in this section (none wrong) but that's all I have to write because Idek what I'm doing.

Which element has the lesser nuclear charge?

2017-09-25 14:29:59 UTC

A: Sperncercoxium
B:Oxygen
C:Florine
D:Calcium
E:Arsenic

Multiple Choice

2017-09-25 14:30:26 UTC

Which element has less binding energy than oxygen?
A. N
b. F
c. NE
d. Ar

Multiple Choice - Richard Whitfield

2017-09-25 14:30:40 UTC

As you move from left to right across the periodic table, effective nuclear charge increases. Which of the following would display decreasing effective nuclear charge?
A. HfB. Si>Ti>Ba
C. Na>V>Ag
D. Kr>Sr>Te
E. Po>I>Au

Free Response

2017-09-25 14:31:02 UTC

Explain why F- has a higher nuclear charge than O^2-.
F- has more protons so there is more nuclear charge

Multiple choice - Kendall Nelson

2017-09-25 14:31:37 UTC

Which of the following has the

Free Response: Payton Tucker

2017-09-25 14:32:11 UTC

Why does Sulfur have less effective nuclear charge than Oxygen?

Answer: Sulfur has a lower ENC than Oxygen because Sulfur has more energy levels than oxygen, which creates a shielding effect as it is further from the nucleus.

free response

2017-09-25 14:56:05 UTC

Why does C have a greater effective nuclear charge than B?

The charge of the nuclear on C (6) is greater than the charge on Boron (5)

Reasoning

2017-09-25 15:29:17 UTC

I did not memorize the trend.

Explanation of Mistakes by Vandanaa

2017-09-25 16:35:42 UTC

I made simple counting mistakes between two different elements and their number of protons. Because of my miscount, I ended up missing whole questions about increasing nuclear charge.

Kacie

2017-09-25 17:59:32 UTC

Effective nuclear charge is best defined by which of the following?
A. The attraction that the atom has to gain electrons
B. The tendency to gain electrons
C. How effective a positive nucleus is to gain more electrons in order to keep its valence electrons.
D. The charge that the positive nucleus has to it's electrons

Abby Marshall Multiple Choice

2017-09-25 18:01:37 UTC

Which of the following elements has the highest effective nuclear charge?

A. Ti
B. Ar
c. Xe
D. Na

Multiple Choice Colby Dennis

2017-09-25 18:02:46 UTC

Which element has the highest effective nuclear charge?
A. Ca
B. Pd
C. Ir
D. Os

Multiple Choice (Oliver Meade)

2017-09-25 18:03:58 UTC

Why is Cl smaller than S-?

A) S has an extra electron in the Valance Shell
B) There is a greater nuclear charge in Cl than in S-
C) S- has an extra energy level
D) There is a greater neutron count in Cl, making it draw in the electrons due to its higher mass

Reason why I missed the question. (Patrick Chan)

2017-09-25 18:04:54 UTC

I missed the question because I made mistakes on remembering that more energy levels would make the nuclear charge weaker.

Multiple Choice - Tori Skelley

2017-09-25 18:05:18 UTC

Which of the following has the greatest nuclear charge?
A.) Tc
B.) Zr
C.) H
D.) Mt

Multiple Choice- Jenna Trantham

2017-09-25 18:05:44 UTC

Which of the following elements have a greater nuclear charge?
A). Ar
B). Fr
C). F
D). O

Free Response: Colby Dennis

2017-09-25 18:06:25 UTC

Why does Oxygen have a larger atomic radius than fluorine?

Multiple Choice(Jared Henry)

2017-09-25 18:06:36 UTC

Which of the following correctly identifies which has a higher first ionization energy, Rb or Xe?
A. Xe, because it has a higher effective nuclear charge
B. Xe, because it has a higher electronegativity
C. Sr, because it has a larger atomic radius
D. Sr, because it has a fully filled 4s orbital

Multiple Choice (Adira Abdullah)

2017-09-25 18:07:21 UTC

Which of the following elements has the highest nuclear charge?
A. Y
B. Mo
C. Tc
D. Cd

Multiple Choice (Victoria Contreras

2017-09-25 18:07:26 UTC

Which of the following correctly identifies which has a higher first ionization energy, Br or Kr?
A) Kr, because it has a higher electronegativity
B) Br, because it has a higher effective nuclear charge
C) Kr, because it has a higher electron affinity
D) Br, because it has a completely filled valence shell

Free Response - Tori Skelley

2017-09-25 18:07:38 UTC

What determines the effective nuclear charge?
The number of protons determines the effective nuclear charge. The more protons in an element, the higher the effective nuclear charge.

Multiple Choice (Patrick Chan)

2017-09-25 18:07:58 UTC

Which of the following has the greatest nuclear charge?

A) Fr
B) Ag
C) F
D)Rn

Meghan Greenwell

2017-09-25 18:08:04 UTC

Free Response: Why does Br have a greater nuclear charge than Se?
Multiple Choice:

Free Response (Oliver Meade)

2017-09-25 18:08:35 UTC

Using your knowledge of Effective Nuclear Charge, explain why Br has a greater first Ionization Energy than Se.

Br has a higher atomic number, which causes a greater nuclear charge, than Se. This results in a stronger pull on the Valance Electrons, causing a greater 1st Ionization Energy in Br.

Free Response (Patrick Chan)

2017-09-25 18:09:12 UTC

Why does F have a greater nuclear charge than Co?

F has a greater nuclear charge than Co because it only has two energy levels compared to Co having 4 energy levels.

Free Response (Adira Abdullah)

2017-09-25 18:09:30 UTC

Why would Sulfur have a stronger nuclear charge then Aluminum? Sulfur would have a stronger nuclear charge because it has more protons in its nucleus causing a stronger pull or attraction to the nucleus from the electrons. This also causes sulfur to become smaller in size.

Multiple Choice (Evan B)

2017-09-25 18:10:03 UTC

Element X and Element Y are in the same period on the periodic table. Element X has a larger effective nuclear charge than Element Y. Which element is larger and why?
a. Element X because it has more energy levels
b. Element Y because it has more energy levels
c. Element X because it has less protons
d. Element Y because it has less protons

Multiple Choice-Mason Fulk

2017-09-25 18:10:34 UTC

Which element has greater nuclear charge?
A) Li
B) N

Why I got these questions wrong. Colby Dennis

2017-09-25 18:10:46 UTC

I got these questions wrong because I forgot when to use nuclear charge.

Free Response (Evan B)

2017-09-25 18:11:03 UTC

Explain why Magnesium(Mg) has a greater effective nuclear charge than Sodium(Na).

answer: Mg has more protons than Na, increasing the electrostatic attraction.

Multiple choice (Landon Webb)

2017-09-25 18:11:22 UTC

Which element has the highest effective nuclear charge?
a. Sn
b. As
c. P
d. Al

Why I missed these questions (Adira Abdullah)

2017-09-25 18:11:37 UTC

I actually understood these questions really well, but I might have missed them due to careless mistakes.

Multiple Choice (Shawn Brown)

2017-09-25 18:11:54 UTC

Which of the following elements has the highest effective nuclear charge?

A. F
B. Ag
C. Ca
D. Mn

Joelle Davis

2017-09-25 18:12:24 UTC

Which has a greater nuclear charge?
A) Al
B) Si
C) P
D) S

Written Response:
When elements are in the same energy level, why is the nucleur charge different?

The nuclear charge is different because the element with the most protons has the biggest nuclear charge.

Free Response (Victoria Contreras

2017-09-25 18:12:30 UTC

Which has a higher first ionization energy, F or Ne?

Ne, because it has a greater effective nuclear charge due to its greater amount of protons in the nucleus.

Free response (Landon Webb)

2017-09-25 18:12:51 UTC

Explain the reason why the first ionization energy of Nitrogen is higher than that of Carbon?
Nitrogen has a greater effective nuclear charge than Oxygen, it having more protons in the nucleus than Carbon and closer to becoming a noble gas.

Multiple Choice (Kayla Stissel)

2017-09-25 18:12:53 UTC

Which of these elements has a greater nuclear charge
A) Cs
B) O
C) Ag
D) Cr

Free Response (Jared Henry)

2017-09-25 18:14:21 UTC

Which has a larger atomic radius, Be or C and why?
Be has a larger atomic radius due to the fact that is has a smaller effective nuclear charge causing the electrons to not be as attracted to the nucleus therefore increasing their distance from the nucleus.

Multiple Choice Natalia Wilson

2017-09-25 18:14:54 UTC

Which of the following elements has the lowest effective nuclear charge
A Sr
B N
C Se
D Br

Free Response - Mason Fulk

2017-09-25 18:15:21 UTC

Which element has the greatest nuclear charge?
A) Li
B) Be
C) Al
D) S

Why I missed these questions (Victoria Contreras)

2017-09-25 18:15:28 UTC

I miss these questions because when they are close together on the periodic table but in different periods and groups I get confused.

Free Response (Kayla Stissel)

2017-09-25 18:16:52 UTC

Explain why Mg has a smaller nuclear charge then Al.
Mg has a smaller nuclear charge then Al because Al has more more protons then Mg causing a greater pull on the electrons.

FRQ (Scarlett)

2017-09-25 18:17:04 UTC

Why I missed these questions Natalia Wilson

2017-09-25 18:17:08 UTC

I missed these questions because I misread questions and interrupted them incorrectly.

Free Response Natalia Wilson

2017-09-25 18:18:27 UTC

As and Br are in the same energy level, what differentiates them and makes one larger than the other?

Connor Gary

2017-09-25 18:19:15 UTC

Which of these elements has the greatest nuclear charge?

a. Xenon
b.Bromine
c. Gold
d. Nitrogen

Connor Gary

2017-09-25 18:19:50 UTC

I missed these questions because I am dumb

Free Response (Maggie Schall)

2017-09-25 18:57:00 UTC

Question: Which has a larger atomic radius, K or As, and explain why.

Answer: K would have a larger atomic radius. This is because As has a larger nuclear charge, created by having more protons in the nucleus, which causes the electrons to be pulled closer to the core of the atom.

Multiple Choice: Allison Roland

2017-09-25 19:02:31 UTC

Which of the following elements has the highest effective nuclear charge?
A.) K
B.) Mn
C.) Zr
D.) S

Free Response: Allison Roland

2017-09-25 19:03:38 UTC

Explain why Cl has a higher effective nuclear charge compared to P. Cl has more protons than that P does allowing for a greater pull towards the nucleus.

Multiple Choice (Maggie Schall)

2017-09-25 19:05:46 UTC

Which has the highest first ionization energy?

A. K
B. O
C. F
D. Ag

Why I missed these Questions (Maggie Schall)

2017-09-25 19:08:01 UTC

I missed these questions because I would think about the wrong trend. I would include/exclude the noble gasses when I shouldn't and overall just got a bit confused.

Explanation: Allison Roland

2017-09-25 19:08:06 UTC

I don't remember if I missed any of these specifically but I could see myself messing up the periodic trend. I wish there was an easier way to remember it.

Multiple Choice (Nick Oberlin)

2017-09-25 19:19:09 UTC

Which of the following atoms has the greatest nuclear charge?

a. Cl
b. As
c. Be
d. Ca

Free Response Question (Nick Oberlin)

2017-09-25 19:20:53 UTC

Does Phosphorus (P) have a greater or lesser nuclear charge than Argon (Ar)?
Phosphorus has a smaller nuclear charge because Argon has more protons pulling the electrons closer to the nucleus, therefore increasing the effective nuclear charge.

Why I got these wrong.. (Landon Webb)

2017-09-25 19:23:20 UTC

I think I had these in the bag for the most part. Maybe careless mistakes here and there but if I had my mind straight I would of got them right.

Free Response Ell Henderson

2017-09-25 19:24:46 UTC

If elements P+1 and Cl-1 are isoelectric with each other which one has a greater nuclear charge, and why? Answer: Cl-1 has a greater nuclear charge because it has more protons creating a stronger effective nuclear charge.

Why I missed these questions (Nick Oberlin)

2017-09-25 19:26:08 UTC

I missed these questions because I completely forgot about the periodic trends.

Multiple Choice - Caitlin Mann

2017-09-25 19:29:45 UTC

Which of the following has the greatest ionization energy?

A.) C
B.) O
C.) Ne
D.) H

Why I missed the questions Ell Henderson

2017-09-25 19:31:22 UTC

I missed one isoelectronic charges because I didn't know you just had to compare the charge.

Free Response - Grace Kisting

2017-09-25 19:59:59 UTC

Explain why the nuclear charge of an atom increases as you travel from left to right on the periodic table.

Answer: The nuclear charge increases as you travel from left to right on the periodic table because more protons are being added into the nucleus, which is how you measure nuclear charge.

Multiple Choice - Savannah Amick

2017-09-25 20:05:07 UTC

Which has the highest first ionization level?
a. F
b. Na
c. Fe
d. C

Explanation - Grace Kisting

2017-09-25 20:16:12 UTC

I missed these questions because I got confused about if the nuclear charge changes as you go down a column.

Why Did I Get These Questions Wrong? (Chloe Russell)

2017-09-25 20:18:12 UTC

I second guessed myself and I wasn't sure about my answers.

Why I missed these questions. -Savannah Amick

2017-09-25 20:18:39 UTC

I understand these questions however I missed them because made stupid mistakes.

Multiple Choice (Chloe Russell)

2017-09-25 20:19:27 UTC

Which of the following has a higher Nuclear Charge?
A) Ag
B) La
C) Ga
D) Cl

Free Response - Savannah Amick

2017-09-25 20:20:59 UTC

Explain, in terms of atomic structure, why As has a higher first ionization energy than Ga.

Answer: (As) has a higher nuclear charge because it has a smaller atomic radius, therefore increasing the electrostatic attraction.

Free Response (Chloe Russell)

2017-09-25 20:22:04 UTC

Explain why Niobium has a lower effective nuclear charge than Germanium.
Niobium has a lower nuclear charge because germanium has a higher electrostatic attraction.

Free Response- Carter Gamble

2017-09-25 20:30:09 UTC

How does effective nuclear charge relate to ionization energy?
Nuclear charge increases with ionization energy because the harder it is to remove the electrons the greater the effective nuclear charge is.

Why I missed these- Carter Gamble

2017-09-25 20:32:08 UTC

I missed this simply because I wasn't paying attention to what the question was asking for.

Multiple Choice- Carter Gamble

2017-09-25 20:32:45 UTC

Which of the following has the greatest effective nuclear charge and why?
Cl, it is closer to the noble gasses on the table.
K, because it has a positively charged ion whereas in Cl it is negative.
Cl, It has less energy levels
K, because it has more valence electrons.

Free Response- Jenna Trantham

2017-09-25 21:10:12 UTC

Why would Oxygen have a greater nuclear charge than Boron?

Answer: Oxygen has more protons in it's nucleus therefore it would have a greater nuclear charge.

Reasons for missing this question- Jenna Trantham

2017-09-25 21:10:38 UTC

Make sure you remember that nuclear charge increases as protons increase.

Free Response - Garrett Balog

2017-09-25 21:29:20 UTC

As you gain more protons will nuclear charge increase or decrease and why?

It will increase. Because you have more protons it effects the electrons more and they'll be pulled in with more force.

Why I missed these - Garrett Balog

2017-09-25 21:33:07 UTC

I forgot to distinguish in which direction the nuclear charge will increase.

Free Response - Richard Whitfield

2017-09-25 21:45:47 UTC

Explain how effective nuclear charge relates to proton number by energy levels.
The atom with the greatest number of protons on an energy level will have the greatest effective nuclear charge. The greater number of protons provides a greater pull on the electrons.

Why I got these questions wrong - Richard Whitfield

2017-09-25 21:48:23 UTC

I made the mistake of not writing out the up/down arrows for different atoms. It led to dumb mistakes.

Free Response (Mackenzie Reed)

2017-09-25 22:12:27 UTC

Why would Chlorine have a smaller nuclear charge than Argon?

A: Chlorine has a smaller amount of protons in it's nucleus than Argon, which would make it's nuclear charge smaller.

WHY? Devin Cooke

2017-09-25 22:13:31 UTC

I missed these questions because of careless mistakes.

MC Devin Cooke

2017-09-25 22:16:21 UTC

Which element has the highest nuclear charge?
A.Ir
B.Cl
C.O
D.Se

Multiple Choice (Mackenzie Reed)

2017-09-25 22:17:52 UTC

Which of the following has the smallest nuclear charge?
A: Ca
B: F
C: Ar
D: O

FR Devin Cooke

2017-09-25 22:19:58 UTC

Why does Cobalt have a lower Nuclear Charge than Arsenic? Arsenic has a higher Nuclear Charge because there are more protons pulling the electrons together which will make the electron cloud bigger because of electron repulsions.

Mackenzie Reed- Why I missed these questions.

2017-09-25 22:58:29 UTC

Skipping certain steps led to careless mistakes on my part.

Multiple Choice

2017-09-25 23:26:48 UTC

Multiple Choice: Which choice is in order of least to greatest effective nuclear charge?
A. Be
B. N
C. Na
D. Fe

Free Response

2017-09-25 23:27:09 UTC

Describe the reason why the first ionization energy of aluminum is greater than that of calcium.

Multiple Choice

2017-09-25 23:28:04 UTC

Which of the following has a smaller nuclear charge?
a. Ac
b. Zn
c. Au
d. F
(Hope McNish)

Free Response

2017-09-25 23:28:33 UTC

Why does F have a higher nuclear charge than V?
Answer: Because as you move from the left to the right, the amount of protons increase. Thus creating a higher nuclear charge.
(Hope McNish)

Reasoning:

2017-09-25 23:28:59 UTC

I missed these because I didn’t think the questions through.

Why I missed these questions:

2017-09-25 23:33:43 UTC

The way some questions were worded kind of confused me so I missed key words.

Written Response

2017-09-25 23:44:41 UTC

Arrange the following elements in order of decreasing nuclear charge.
P, C, Al, Li

Why I missed these questions- Ashley Armendariz

2017-09-25 23:52:29 UTC

I made careless mistakes and forgot which way the nuclear charge increased/decreased on the periodic table.

Multiple Choice

2017-09-25 23:56:32 UTC

Which element out of Al and F has the greater nuclear charge?
a. F, Fluorine has more protons than O
b. F, Fluorine has less protons than O
c. O, Oxygen has more protons than F
d. O, Oxygen has less protons than F

Multiple Choice- Ashley Armendariz

2017-09-26 00:00:07 UTC

Between the elements Ge and Sr, which has the higher effective nuclear charge?

A. Sr, it has more protons than Ge
B. Ge, it has more valence electrons
C. Sr, it has more energy levels
D. Ge, it has more protons than Sr

Why I missed these questions.

2017-09-26 00:00:28 UTC

I knew the answer I just didn't know how to explain it.

Free Response- Ashley Armendariz

2017-09-26 00:06:22 UTC

As you move from right to left on the periodic table, will the nuclear charge increase or decrease?

The nuclear charge would decrease, because as you move right to left, the elements are losing protons.

Multiple Choice - James Voos

2017-09-26 00:21:15 UTC

Which element has a higher effective nuclear charge?
A. Carbon
B. Aluminum
C. Titanium
D. Francium

Free Response - James Voos

2017-09-26 00:24:13 UTC

Why does Carbon have a higher effective nuclear charge than Lithium? Carbon has a higher effective nuclear charge due to its greater pull form the nucleus. This is caused by a greater number of protons and electrons in Carbon without it having more shells to create more shielding.

Does C or Sn have a greater effective nuclear charge?

2017-09-26 00:25:12 UTC

Multiple Choice (Jay Patel)

2017-09-26 00:25:43 UTC

Which of the following elements possesses the greatest effective nuclear charge?
A. Fe
B. F
C. Bi
D. Ge
Correct Answer:

Why I missed these questions - James Voos

2017-09-26 00:28:13 UTC

I knew exactly what Effective Nuclear Charge was but I lacked evidence to support my claims.

Why

2017-09-26 00:28:18 UTC

I missed these because I got confused of how to compare different elements with different energy levels.

Free Response (Jay Patel)

2017-09-26 00:29:25 UTC

Explain why Potassium has a lower effective nuclear charge than Bromine?

Answer: Bromine possesses a higher effective nuclear charge due to a great pull from the nucleus as a result of a greater number of protons in Bromine than in Potassium. Due to more protons, the attraction is greater, resulting in a greater effective nuclear charge.

Why I missed these questions

2017-09-26 00:33:25 UTC

I rushed through these questions thinking I knew the answer.

Free Response (Shawn Brown)

2017-09-26 00:58:32 UTC

List the following elements in order of INCREASING effective nuclear charge. (F, Re, La, S)

La

Explanation (Shawn Brown)

2017-09-26 01:03:12 UTC

I missed these questions because I got confused on effective nuclear charge and the effects is has on electrons.

Why I missed these questions (Kayla Stissel

2017-09-26 01:17:52 UTC

I missed these questions because I wasn't fully looking at all the answer choices and narrowing them down as well as I should have

Explanation - Lizzie Maguire

2017-09-26 01:26:36 UTC

I think I know nuclear charge fairly well but the problem is that I get it confused with electrostatic attraction as well as ionization energy (because they are going in the same direction for their trends).

Reasons - Claire Sholar

2017-09-26 01:27:41 UTC

I used the term in the wrong context.

FRQ - Claire Sholar

2017-09-26 01:28:55 UTC

Does nuclear charge increase or decrease from right to left in a period? Why? Nuclear charge decreases in this case because the amount of protons in the nucleus decrease.

Multiple Choice - Claire Sholar

2017-09-26 01:32:43 UTC

How does nuclear charge relate to the atomic radius of an atom?
The higher the nuclear charge, the smaller the atomic radius.

Multiple Choice (Paityn York)

2017-09-26 01:42:54 UTC

Which of the following atoms has the greatest nuclear charge?

a) W
b) N
c) Y
d) F

Free Response (Paityn York)

2017-09-26 01:49:43 UTC

Out of the elements Cl and S, which has a smaller effective nuclear charge and why?

S has a smaller effective nuclear charge. There are less protons in that element than in Cl, meaning there is a weaker pull and the effective nuclear charge is less.

Why I Missed These Questions

2017-09-26 01:53:45 UTC

I tend to skim over the questions, which may have resulted in a misunderstanding.

Multiple Choice - Ethan Kraft

2017-09-26 02:23:58 UTC

Which of the following elements has the greatest effective nuclear charge?
A) W
B) Fe
C) O
D) Rn

Free Response - Ethan Kraft

2017-09-26 02:25:06 UTC

Explain why Cl has a greater nuclear charge than S.
Cl has one more proton than S, meaning it's charge is one greater than S. This means that Cl has a greater pull on electrons.

Why I got these wrong - Ethan Kraft

2017-09-26 02:27:01 UTC

It honestly comes down to me overthinking things and writing down more than I need to, which means that what I write down is probably wrong.

Free Response - Lizzie Maguire

2017-09-26 02:50:41 UTC

Explain why F has a greater nuclear charge than O. F has a greater nuclear charge than O because it has more valence electrons and a greater number of protons, which causes the nuclear charge to increase.

Multiple Choice (Hannah Miller)

2017-09-26 04:05:36 UTC

Which of the following has the greatest effective nuclear charge?
A.) Db
B.) Sg
C.) Ru
D.) P

Free Response -(Hannah)

2017-09-26 04:10:28 UTC

Why does S have a greater nuclear charge when compared to BR.

S is smaller when compared to Br, so that means it's electrons are closer towards the nucleus than Br's are. So the Nuclear charge for S is larger than that of BR.

Free Response (Toula Lampropoulos)

2017-09-26 04:58:26 UTC

How does nuclear charge change when moving across an energy level?

As you move across an energy level from left to right, the nuclear charge becomes stronger. This is due to the increasing number of protons.m

Reflection (Toula Lampropoulos)

2017-09-26 05:01:44 UTC

I most likely missed these questions due to not being fully clear on the topic and still not understanding some aspects of it.

Multiple Choice (Toula Lampropoulos)

2017-09-26 05:03:22 UTC

Arrange the following elements in order of decreasing nuclear charge.
C , Cu , S , P

a) S > P > C > Cu
b) C > S > P > Cu
c) C > P > S > Cu
d) Cu > P > S > C

Why I got this wrong. (Hannah Miller)

2017-09-26 06:13:13 UTC

I'm not fully sure what happened with these, I think I was just rushing and ended up circling the wrong ones.