by Thoeun Bun

Cornell Notes Chapter 4 Lesson 3

tbun — 2015-11-17 17:27:55 UTC

Due Thursday after school

Table 5 Juliana

2015-11-17 17:33:18 UTC

Question 10: What is an ion?

Answer: An ion is an atom that is no longer neutral because it has gained or lost electrons. Ions form ionic compounds.

table 7

2015-11-17 17:33:29 UTC

question 13: what are negative ions? answer: when an atom gains an electron, it forms an ion with a negative charge. question 14 provide example of negative ions. example: for example fluorine and chlorine can form ions with a -1 charge.

Table 2: Nani Rivera & Samontha Oung :)

2015-11-17 17:34:03 UTC

#3 Q:What are metalloids?

A: Metalloids are elements with properties like both metals and nonmetals.

mikayla thompson table 5

2015-11-17 17:35:29 UTC

protium, deuterium, tritium is the answer for question #9

table 3 Dylan Hunter

2015-11-17 17:35:32 UTC

Question: what is an Isotope

Answer: an isotope is an atom of the same elememt that have different numbers of neutrons.

table 4 sharidan mchan

2015-11-17 17:35:54 UTC

#8 what is it used for?

Radioactive isotopes are used to detect and treat a variety of medical conditions.

table 1 JW

2015-11-17 17:36:07 UTC

Question 2:The number of protons is the same as the atomic number.

chris and lincoln

2015-11-17 17:36:40 UTC

table 2

An atom mass number can calculted by adding the number of protons and the number of neutrons

A

Table 1 LS

2015-11-17 17:36:50 UTC

#1 Q: What is an element? How many known elements are there?

A: An element is a pure substance made from atoms that all have the same number of protons. There are 118 elements recorded on the Periodic Table. :)

table 4 caleb

2015-11-17 17:37:55 UTC

#7 carbon 14 is the most radioactive isotope

Table 6 ~Donavan~

2015-11-17 17:40:49 UTC

Question #12 What Elements often form Positive ions?

Elements on the left side of the periodic are most likely to form positive ions.

Table 6: Jayden and Chris Rios

2015-11-17 17:50:21 UTC

Q: When does an ion change to a positive ion?

A: When an atom loses electrons and has more protons, resulting in a positive charge.

cade table

2015-11-17 17:55:31 UTC

what are metaloids: metaloids are Boron,Silicon,Germanium,Arsenic, Antimony,Tellurium,Polonium,and Astatine