Physical Science Periodic Table Trends by Merlvyn https://padlet.com/Merlvyn/cf85jjxogwrb Trends in melting point, density, hardness, electrical conductivity and thermal conductivity en-us 2016-08-31 11:01:57 UTC 2017-05-24 02:08:44 UTC hello@padlet.com Columns lll & lV https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607712 Density
-Boron (B):2.37g/cm3
-Aluminum (Al):2.70g/cm3
-Gallium (Ga):5.91g/cm3
-Indium (In):7.31g/cm3
-Thalium (Tl):11.85g/cm3
-Carbon (C) diamond :3.51g/cm3
Carbon (graphite): 2.266g/cm3
-Silicon (Sl):2.3296g/cm3
-Germanium (Ge):around 5.5g/cm3
-Tin (Sn):7.31g.cm3
-Lead (Pb):11.34g/cm3
Trend: The farther down the element is, the greater the density.
]]> 2016-09-19 01:16:56 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607712 Columns VII & 0 https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607770 (Ashley R., Mitchell, Isaac, Winnie, Megan)
Melting Point
Group VII
- Fluorine: -219.67 (C)
- Chlorine: -101.5 (C)
- Bromine: -7.2 (C)
- Iodine: 113.7 (C)
- Astatine: 302 (C)
Group 0
- Helium: -270.3(C)
- Neon: -248.59 (C)
- Argon: -189.34 (C)
- Krypton: -157.37 (C)
- Xenon: -111.75 (C)
- Radon:  -71 (C)
Conclusion:  The further you go down the group, higher the melting point will be. ]]> 2016-09-19 01:17:21 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607770 Columns I & II https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607772 Caleb, Owen, Christina, Andrew, Steven

]]> 2016-09-19 01:17:21 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607772 Transition Metals - Density https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607814 Scandium (Sc) - 2985 kg/m³
Titanium (Ti) - 4507 kg/m³
Vanadium (V) - 6110 kg/m³
Chromium (Cr) - 7140 kg/m³
Manganese (Mn) - 7470 kg/m³
Iron (Fe) - 7874 kg/m³
Cobalt (Co) - 8900 kg/m³
Nickel (Nl)- 8908 kg/m³
Copper (Cu) - 8920 kg/m³
Zinc (Zn) - 7140 kg/m³

Starts becoming denser, starts becoming less dense at Copper

Yttrium (Y) - 4472 kg/m³
Zirconium (Zr) - 6511 kg/m³
Niobium (Nb) - 8570 kg/m³
Molybdenum (Mo) - 10280 kg/m³
Technetium (Tc) - 11500 kg/m³
Ruthenium (Ru) - 12370 kg/m³
Rhodium (Rh) - 12450 kg/m³
Palladium (Pd) - 12023 kg/m³
Silver (Ag) - 10490 kg/m³
Cadmium (Cd) -  8650 kg/m³
Hafnium (Hf) - 13310 kg/m³
Tantalum (Ta) - 16650 kg/m³
Tungsten (W) - 19250 kg/m³
Rhenium (Re) - 21020 kg/m³
Osmium (Os) - 22610 kg/m³
Iridium (Ir) - 22650 kg/m³
Platinum (Pt) - 21090 kg/m³
Gold (Au) - 19300 kg/m³
Mercury (Hg) - 13534 kg/m³
Rutherfordium (Rf) - Unknown
Dubnium (Db) - Unknown
Seaborgium (Sg) - Unknown
Bohrium (Bh) - Unknown
Hassium (Hs) - Unknown
Meiternium (Mt) - Unknown
Darmstadtium (Ds) - Unknown
Roentgenium (Rg) - Unknown
Copernicium (Cn) - Unknown]]> 2016-09-19 01:17:45 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607814 Group 2 Transition Metal (Middle Block) https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607869 Rachel, Lesley, Ashley, Isaiah, Danny
1) Melting Point
-Scandium/ 1,541 °C
-Titanium/ 1,668 °C
-Vanadium/ 1,910 °C
-Chromium/ 1,907 °C
-Manganese/ 1,246 °C
-Iron/ 1,538 °C
-Cobalt/ 1,495 °C
-Nickel/ 1,455 °C
-Copper/ 1,085 °C
-Zinc/  419.5 °C
Trend: The melting Point of the Transition Metal starts out at 1541°C and rises up than falls down till 429.5

]]> 2016-09-19 01:17:48 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607869 Melting  https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607894 Column 3:
Boron: 2076 C
Aluminium: 660.3 C
Gallium: 29.76 C
Indium: 156.6 C
Thallium: 303.8 C
Column 4:
Carbon (graphite): 3550 C
Carbon (diamond): 4726.85
C
Silicon: 1414 C
Germanium: 938.2 C
Tin: 231.9 C
Lead: 327.5 C
No pattern

]]> 2016-09-19 01:18:06 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607894 Hardness https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607977 Boron: 9.5
Aluminium: 2-2.9
Gallium: 1.5
Indium: 1.2
Thallium: N/A
Carbon: 10.0
Silicon: 7.0
Germanium:N/A
Tin: 1.5-1.8
Lead: 1.5



]]> 2016-09-19 01:18:57 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124607977 Group 4 https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608029 1) Julia
2) Raphael
3) Will
4)Dominique 
5) Gilbert]]> 2016-09-19 01:19:02 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608029 Electrical Conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608034 Group III & IV
σ (S/m) at 20 °C
Conductivity
Boron:
0.0001
Aluminium:
3.5×107
Gallium:
7.1×106
Indium:
1.2×107
Thallium
6.7×106
Carbon(Diamond):
~10−13
Carbon(graphite):
2 to 3×105 //basal plane
3.3×102 ⊥basal plane
Silicon:
1.56×10−3
Germanium:
2.17
Tin:
9.17×106
Lead:
4.55×106]]> 2016-09-19 01:19:03 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608034 Hardness https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608091 Helium: N/A
Neon: N/A
Argon: N/A
Krypton: N/A
Xenon: N/A
Radon: N/A
Fluorine: N/A
Chlorine: N/A
Bromine: N/A
Iodine: N/A
Astatine: N/A

Conclusion: Elements in Group VII and 0 cannot be measured on its hardness since its mostly]]> 2016-09-19 01:19:31 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608091 Thermal conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608143 Group 7
Fluorine: 0.0277 W m-1 K-1
Chlorine: 8.9×10−3 W/(m·K)
Bromine: 0.12 W/(m K)
Iodine:  0.449 W/(m K)
Astatine: 2 W/(m K)
Group 0
Helium: 151.3 m W/(m-K)
Neon: 49.1×10−3 W/(m·K)
Argon:  17.72 m W/(m-K)
Krypton:  9.43×10−3 W/(m·K)
Xenon: 5.65×10−3 W/(m·K)
Radon:  3.61×10−3 W/(m·K)

Conclusion: the higher the more conductivity it has]]> 2016-09-19 01:20:02 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608143 Density https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608169 Group VII
Fluorine-1.696 g/L
Chlorine-3.2 g/L
Bromine-3.1 g/cm-3
Iodine-4.93 g/cm-3
Astatine-7 g/cm 3
Group 0
Helium-0.164 kg/m3
Neon-0.9002 g/L
Argon-1.784 g/L
Krypton-3.749 g/L
Xenon-5.894 g/L
Radon-9.73 g/L
The further down the  you go the more dense it is.]]> 2016-09-19 01:20:18 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608169 Themal conductivity III IV https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608296 BORON
27 W/(m K)
Aluminium
235 W/(m K)
Galium
29 W/(m K)
Indium
82 W/(m K)
Thalium
46 W/(m K)
Carbon
140 W/(m K)
Silicon
150 W/(m K)
Germanium
60 W/(m K)
Tin
67 W/(m K)
Lead
35 W/(m K)]]> 2016-09-19 01:21:51 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608296 Density of Group VI (Group 4) https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608313 Nitrogen: 1.251 g/L
Oxygen: 1.429 g/L
Phosphorus: 1.823 g/cubic cm
Sulfur: 2.07 g/cubic cm
Arsenic: 5.727 g/cubic cm
Selenium: 4.81 g/cubic cm
Antimony: 6.697 g/cubic cm
Tellurium: 6.24 g/cubic cm
Bismuth: 9.78 g/cubic cm
Polonium: 9.196 g/cubic cm for alpha; 9.398 g/cubic cm for beta
It gets denser as you go farther and farther down the group and the periodic table. Some have alpha and betas.]]> 2016-09-19 01:22:01 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608313 Electrical Conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608353 Group VII
- Fluorine: N/A
- Chlorine: 0.01 S/m
- Bromine:1×10^-10 S/m
- Iodine:1×10^-7 S/m
- Astatine:N/A
Group 0
- Helium:N/A
- Neon:N/A
- Argon:N/A
- Krypton:N/A
- Xenon:N/A
- Radon: N/A 

Conclusion:  Most parts of group VII and 0  cannot be measured. Chlorine has the best electrical conductivity and bromine has the worst.]]> 2016-09-19 01:22:25 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608353 (2) Density https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608492 Hydrogen (H) - 0.08988 g/L
Lithium (Li) - 0.534 g/cm3
Sodium (Na) - 968 kg/m³
Potassium (K) - 0.89 g/cm3
Rubidium (Rb) - 1.532 g/cm3
Caesium (Cs) - 1.93 g/cm3
Francium (Fr) -  2.8–3.0 g/cm3
Beryllium (Be) - 1.85 g/cm3
Magnesium (Mg) - 1.738 g/cm3
Calcium (Ca) - 1.54 g/cm3
Strontium (Sr) - 2.64 g/cm3
Barium (Ba) - 4.5 g·cm−3
Radium (Ra) - 5.5 g/cm3

Trend
It gets denser the further you go down the column]]> 2016-09-19 01:23:37 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608492 1) Melting Point https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608500 Group 1
Hydrogen (H)- -259.2 (C)
Lithium (Li)- 180.5 (C)
Sodium (Na)- 97.79 (C)
Potassium (K)- 63.5 (C)
Rubidium (Rb)- 39.48 (C)
Caesium (Cs)- 28.44 (C)
Francium (Fr)- 27 (C)

Group 2
Berylium (Be)- 1287 (C)
Magnesium (Mg)- 650 (C)
Calcium (Ca)- 842 (C)
Strontium (Sr)- 768.8 (C)
Barium (Ba)- 727 (C)
Radium (Ra)- 700 (C)

Trend: The melting point of group one falls from 180.5 to 27 (C) except for Hydrogen who started out negative. The melting point of group 2 decreases then rises then decreases.]]> 2016-09-19 01:23:40 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608500 Hardness https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608508 Nitrogen: N/A
Phosphorus: N/A
Arsenic: 3.5MPa
Antimony: 3.MPa
Bismuth: 2.25MPa
Oxygen: N/A
Sulphur: 2.MPa
Selenium: 2.MPa
Tellurium: 2.25MPa
Polonium: N/A

]]> 2016-09-19 01:23:42 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608508 Electrical conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608606 Hydrogen: N/A
lithium:1.1×107 S/m
sodium:2.1×107 S/m
potassium:1.4×107 S/m
Rubidium:8.3×106 S/m
Cesium:5×106 S/m
Francium:N/A
Beryllium:
Magnesium:2.3×107 S/m
Calcium:
2.9×107 S/m

Strontium:7.7×106 S/m
Barium:2.9×106 S/m
Radium:










]]> 2016-09-19 01:24:39 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608606 Electric Conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608640 Nitrogen: N/A
Phosphorus:1×107 S/m
Arsenic:3.3×106 S/m
Antimony:2.5×106 S/m
Bismuth:7.7×105 S/m
Oxygen: N/A
Sulfur: 1×10-15 S/m
Selenium:N/A
Tellurium:1×104 S/m
Polonium:2.3×106 S/m]]> 2016-09-19 01:24:57 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124608640 Thermal Conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124609003 Nitrogen:25.83×10−3 W/(m·K)
Oxygen:26.58×10−3  W/(m·K)
Phosphorus:white: 0.236 W/(m·K)
black: 12.1 W/(m·K)
Sulfur:0.205 W/(m·K) (amorphous)
Selenium:amorphous: 0.519 W/(m·K)
Arsenic:50.2 W/(m·K)
Antimony:24.4 W/(m·K)
Tellurium:1.97–3.38 W/(m·K)
Bismuth:7.97 W/(m·K)
Polonium:20 W/(m·K) (?)


]]> 2016-09-19 01:28:57 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124609003 Group 2: Electrical Conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124609251 Scandium- 1.5 x 106 S m-1
Titanium-2.5×106 S/m
Vanadium-5×106 S/m
Chromium-7.9×106 S/m
Manganese-6.2×105 S/m
Iron-1×107 S/m
Cobalt-1.7×107 S/m
Nickel-1.4×107 S/m
Copper-5.9×107 S/m
Zinc-1.7×107 S/m
pattern: generally increasing]]> 2016-09-19 01:31:27 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124609251 Hardness (Group 2) https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124609317 Scandium | N/A |
Titanium | 6.MPa |
Vanadium | 7.MPa | Chromium | 8.5MPa |
Manganese | 6.MPa |
Iron | 4.MPa
Cobalt | 5.MPa |
Nickel | 4.MPa |
Copper | 3.MPa |
Zinc | 2.5MPa

The elements are increasing from Titanium until Chromium. From Chromium it start decreasing]]> 2016-09-19 01:31:57 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124609317 Group 4 - Melting Points https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124656319 Nitrogen: -210 °C
Oxygen: -218.8 °C
Phosphorus: 44.2 °C
Sulphur: 115.2 °C
Arsenic: 816.8 °C
Selenium: 220.8 °C 
Antimony:  630.6 °C
Tellurium: 449.5 °C
Bismuth: 271.4 °C
Polonium: 253.8 °C]]> 2016-09-19 08:45:53 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124656319 Thermal condu https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124669191 Thermal Conductivity 

Nitrogen: 0.0234 W/ (m K)
Phosphorus: 0.236 W/(m K)
Arsenic: 50 W/ (m K)
Antimony: 24 W/ (m K)
Bismuth: 7.97 W/ (m K)
Oxygen: 0.0238 W/ (m K)
Sulphur: 0.205 W/ (m K)
Selenium: 0.519 W/(m·K)
Tellurium: 1.97–3.38 W/(m·K)
Polonium: 20 W/(m·K)




]]> 2016-09-19 09:52:29 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124669191 Hardness https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124679913 Lithium | 0.6MPa
Beryllium | 5.5MPa
Magnesium | 2.5MPa
Potassium 0.4MPa
Calcium | 1.75MPa
Rubidium | 0.3MPa
Strontium | 1.5MPa
Cesium | 0.2MPa
Barium | 1.25MPa
Francium | N/A
Radium | N/A]]> 2016-09-19 10:51:16 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124679913 2) Thermal Conductivity-Scandium/ 15.8 W/(m·K)-Titanium/ 21.9 W/(m·K)-Vanadium/ 30.7 W/(m·K)-Chromium/ 7.81 W/(m·K)-Manganese/ 7.81)-Iron/ 80.4 W/(m·K)-Cobalt/ 100 W/(m·K)-Nickel/ 90.9 W/(m·K)-Copper/ 401 W/(m·K)- https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124933027 Zinc/ 116 W/(m·K)

At first it increases, then it decreases, but then increases then lastly starts to increase.



]]> 2016-09-20 00:57:00 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124933027 https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124934051
Hardness


Lithium | 0.6MPa
Sodium | 0.5MPa
Potassium 0.4MPa
Rubidium | 0.3MPa
Cesium | 0.2MPa
Francium | N/A
Beryllium | 5.5MPa
Magnesium | 2.5MPa
Calcium | 1.75MPa
Strontium | 1.5MPa
Barium | 1.25MPa
Radium | N/A
]]> 2016-09-20 01:06:41 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124934051 Density Trends https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935825 The further down the group you go the denser the elements get. Non-metals are a lot less dense than metals. Period 4: as you move right the denser it becomes however it starts going down at zinc.]]> 2016-09-20 01:17:21 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935825 Hardness https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935860 Metals are harder
It gets harder every time until Chromium and then decreases.]]> 2016-09-20 01:17:37 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935860 Melting Point Trend https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935877 For Metal side, the melting point is decreasing. When it gets to the middle part (transitional metal) the trend starts to get random. Then when it get to the non-metal, the melting point starts to increase again from the top to the bottom of the group.

Period 4
The melting point of period four increases till it reaches Vanadium then it becomes random from Chromium to Gallium. Then it starts decreasing from Germanium to 
the rest of the element in period 4.]]> 2016-09-20 01:17:48 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935877 Thermal Conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935899 1) The metals have higher conductivity , the lower thermal conductivity for no-metals 
2) In the beginning, the thermal conductivity it starts to go up, then after copper it goes down.]]> 2016-09-20 01:18:00 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124935899 Thermal Conductivity Hydrogen 0.1805W/(m·K)Lithium: 85 W/(m K)Sodium: 142 W/(m·K)Potassium: 100 W/(m·K)Rubidium: 52 W/(m·K)Caesium: 35.9 W/(m·K)Francium: 0.15W/(m·K)Beryllium: 200W/(m·K)Magnesium: 156W/(m·K)Calcium: 201W/(m·K)Strontium: 35.4W/(m·K)Barium:18.4 W/(m·K)Radium: 19W/(m·K) https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124936119 2016-09-20 01:20:02 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124936119 Electrical conduc https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124936343 2016-09-20 01:22:12 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124936343 Electrical conductivity https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124936347 1)Most metals have better electrical conductivity than non-metals.
2)Most period four elements have good electrical conductivity]]> 2016-09-20 01:22:13 UTC https://padlet.com/Merlvyn/cf85jjxogwrb/wish/124936347