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Potassium
Potassium

Iron
Iron



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Potassium
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Potassium vs Iron

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1 Periodic Table
1.1 Symbol
K
Fe
1.2 Group Number
Tennessine
1
Rank: 17 (Overall)
8
Rank: 10 (Overall)
Gadolinium
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1.3 Period Number
Uranium
4
Rank: 4 (Overall)
4
Rank: 4 (Overall)
Lithium
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1.4 Block
s block
d block
1.5 Element Family
Alkali
Transition Metal
1.6 CAS Number
Roentgenium
7440097
Rank: 70 (Overall)
7439896
Rank: 88 (Overall)
Aluminium
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1.7 Space Group Name
Im_ 3m
Im_ 3m
1.8 Space Group Number
Sodium
229.00
Rank: 1 (Overall)
229.00
Rank: 1 (Overall)
Plutonium
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2 Facts
2.1 Interesting Facts
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
2.2 Sources
Found in Minerals, Mining
Earth's crust, Found in Minerals
2.3 History
2.3.1 Who Discovered
Humphry Davy
Unknown
2.3.2 Discovery
In 1807
Before 5000 BC
2.4 Abundance
2.4.1 Abundance In Universe
Iron
3 * 10-4 %
Rank: 9 (Overall)
1.1 * 10-1 %
Rank: 1 (Overall)
Thallium
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2.4.2 Abundance In Sun
Iron
~0.0004 %
Rank: 9 (Overall)
~0.1 %
Rank: 1 (Overall)
Beryllium
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2.4.3 Abundance In Meteorites
Iron
0.07 %
Rank: 9 (Overall)
22.00 %
Rank: 1 (Overall)
Gold
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2.4.4 Abundance In Earth's Crust
Aluminium
1.50 %
Rank: 6 (Overall)
6.30 %
Rank: 2 (Overall)
Radium
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2.4.5 Abundance In Oceans
Sodium
0.04 %
Rank: 3 (Overall)
0.00 %
Rank: 12 (Overall)
Protactinium
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1.1.1 Abundance In Humans
Calcium
0.20 %
Rank: 2 (Overall)
0.01 %
Rank: 5 (Overall)
Radium
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2 Uses
2.1 Uses & Benefits
  • Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
  • Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
2.1.1 Industrial Uses
Ammunition Industry, Chemical Industry
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
2.1.2 Medical Uses
Pharmaceutical Industry
Pharmaceutical Industry, Surgical Instruments Manufacturing
2.1.3 Other Uses
NA
Alloys, Sculptures, Statues
2.2 Biological Properties
2.2.1 Toxicity
Toxic
Non Toxic
2.2.2 Present in Human Body
83% Alkali Metals Metals have it !
60% Transition Metals Metals have it !
2.2.3 In Blood
Sodium
1,620.00 Blood/mg dm-3
Rank: 2 (Overall)
447.00 Blood/mg dm-3
Rank: 3 (Overall)
Plutonium
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2.3.2 In Bone
Calcium
2,100.00 p.p.m.
Rank: 3 (Overall)
380.00 p.p.m.
Rank: 5 (Overall)
Plutonium
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3 Physical
3.1 Melting Point
Tungsten
63.65 °C
Rank: 77 (Overall)
1,535.00 °C
Rank: 25 (Overall)
Francium
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3.2 Boiling Point
Tungsten
774.00 °C
Rank: 72 (Overall)
2,750.00 °C
Rank: 37 (Overall)
Flerovium
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3.3 Appearance
3.3.1 Physical State
Solid
Solid
3.3.2 Color
Silvery Gray
Gray
3.3.3 Luster
NA
Metallic
3.4 Hardness
3.4.1 Mohs Hardness
Chromium
0.40
Rank: 23 (Overall)
4.00
Rank: 10 (Overall)
Cesium
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3.5.2 Brinell Hardness
Osmium
0.36 MPa
Rank: 54 (Overall)
200.00 MPa
Rank: 40 (Overall)
Cesium
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3.5.4 Vickers Hardness
Tungsten
Not Available
Rank: N/A (Overall)
608.00 MPa
Rank: 18 (Overall)
Palladium
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3.7 Speed of Sound
Technetium
2,000.00 m/s
Rank: 45 (Overall)
5,120.00 m/s
Rank: 8 (Overall)
Thallium
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4.3 Optical Properties
4.3.1 Refractive Index
Palladium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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4.3.2 Reflectivity
Silver
Not Available
Rank: N/A (Overall)
65.00 %
Rank: 12 (Overall)
Molybdenum
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4.5 Allotropes
No Alkali Metals Metals has it !
6% Transition Metals Metals have it !
4.5.1 α Allotropes
Not Available
Ferrite (alpha Iron)
4.5.2 β Allotropes
Not Available
beta Iron
4.5.3 γ Allotropes
Not Available
gamma Iron
5 Chemical
5.1 Chemical Formula
K
Fe
5.2 Isotopes
5.2.1 Known Isotopes
Palladium
20
Rank: 19 (Overall)
26
Rank: 13 (Overall)
Tennessine
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold
0.82
Rank: 51 (Overall)
1.83
Rank: 14 (Overall)
Francium
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5.3.3 Sanderson Electronegativity
Cobalt
0.45
Rank: 31 (Overall)
2.20
Rank: 7 (Overall)
Cesium
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5.3.5 Allred Rochow Electronegativity
Gallium
0.91
Rank: 39 (Overall)
1.64
Rank: 8 (Overall)
Cesium
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5.3.7 Mulliken-Jaffe Electronegativity
Polonium
0.73
Rank: 23 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.4.2 Allen Electronegativity
Berkelium
0.73
Rank: 45 (Overall)
1.80
Rank: 12 (Overall)
Cesium
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5.6 Electropositivity
5.6.1 Pauling Electropositivity
Francium
3.18
Rank: 3 (Overall)
2.17
Rank: 40 (Overall)
Gold
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5.7 Ionization Energies
5.7.1 1st Energy Level
Chromium
418.80 kJ/mol
Rank: 87 (Overall)
762.50 kJ/mol
Rank: 17 (Overall)
Cesium
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5.7.3 2nd Energy Level
Chromium
3,052.00 kJ/mol
Rank: 5 (Overall)
1,561.90 kJ/mol
Rank: 36 (Overall)
Ruthenium
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5.7.5 3rd Energy Level
Chromium
4,420.00 kJ/mol
Rank: 8 (Overall)
2,957.00 kJ/mol
Rank: 29 (Overall)
Osmium
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5.8.1 4th Energy Level
Chromium
5,877.00 kJ/mol
Rank: 9 (Overall)
5,290.00 kJ/mol
Rank: 16 (Overall)
Thorium
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5.9.1 5th Energy Level
Chromium
7,975.00 kJ/mol
Rank: 8 (Overall)
7,240.00 kJ/mol
Rank: 16 (Overall)
Dubnium
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6.1.2 6th Energy Level
Chromium
9,590.00 kJ/mol
Rank: 13 (Overall)
9,560.00 kJ/mol
Rank: 14 (Overall)
Seaborgium
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6.1.4 7th Energy level
Chromium
11,343.00 kJ/mol
Rank: 17 (Overall)
12,060.00 kJ/mol
Rank: 15 (Overall)
Bohrium
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6.2.2 8th Energy Level
Chromium
14,944.00 kJ/mol
Rank: 13 (Overall)
14,580.00 kJ/mol
Rank: 14 (Overall)
Hassium
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6.2.4 9th Energy Level
Chromium
16,963.70 kJ/mol
Rank: 15 (Overall)
22,540.00 kJ/mol
Rank: 5 (Overall)
Yttrium
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6.2.5 10th Energy Level
Chromium
48,610.00 kJ/mol
Rank: 3 (Overall)
25,290.00 kJ/mol
Rank: 8 (Overall)
Strontium
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6.3.1 11th Energy Level
Magnesium
54,490.00 kJ/mol
Rank: 4 (Overall)
28,000.00 kJ/mol
Rank: 9 (Overall)
Yttrium
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6.5.2 12th Energy Level
Magnesium
60,730.00 kJ/mol
Rank: 4 (Overall)
31,920.00 kJ/mol
Rank: 9 (Overall)
Molybdenum
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6.5.4 13th Energy Level
Titanium
68,950.00 kJ/mol
Rank: 4 (Overall)
34,830.00 kJ/mol
Rank: 9 (Overall)
Molybdenum
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6.5.6 14th Energy Level
Vanadium
75,900.00 kJ/mol
Rank: 5 (Overall)
37,840.00 kJ/mol
Rank: 11 (Overall)
Molybdenum
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6.6.1 15th Energy Level
Chromium
83,080.00 kJ/mol
Rank: 6 (Overall)
44,100.00 kJ/mol
Rank: 11 (Overall)
Manganese
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6.6.2 16th Energy Level
Manganese
93,400.00 kJ/mol
Rank: 7 (Overall)
47,206.00 kJ/mol
Rank: 13 (Overall)
Iron
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7.2.1 17th Energy Level
Iron
99,710.00 kJ/mol
Rank: 8 (Overall)
122,200.00 kJ/mol
Rank: 1 (Overall)
Cobalt
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7.3.1 18th Energy Level
Cobalt
Not Available
Rank: 100 (Overall)
131,000.00 kJ/mol
Rank: 2 (Overall)
Nickel
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8.1.1 19th Energy Level
Nickel
Not Available
Rank: 100 (Overall)
140,500.00 kJ/mol
Rank: 3 (Overall)
Copper
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8.2.1 20th Energy Level
Zinc
Not Available
Rank: N/A (Overall)
152,600.00 kJ/mol
Rank: 5 (Overall)
Molybdenum
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8.3.1 21st Energy Level
Zinc
Not Available
Rank: N/A (Overall)
163,000.00 kJ/mol
Rank: 5 (Overall)
Molybdenum
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8.3.2 22nd Energy Level
Copper
Not Available
Rank: N/A (Overall)
173,600.00 kJ/mol
Rank: 4 (Overall)
Molybdenum
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8.5.1 23rd Energy Level
Copper
Not Available
Rank: N/A (Overall)
188,100.00 kJ/mol
Rank: 4 (Overall)
Molybdenum
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8.6.2 24th Energy Level
Iron
Not Available
Rank: N/A (Overall)
195,200.00 kJ/mol
Rank: 1 (Overall)
Molybdenum
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8.6.4 25th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Molybdenum
8.6.5 26th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Molybdenum
8.6.7 27th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
8.6.8 28th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
8.8.2 29th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
8.8.3 30th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
8.9 Electrochemical Equivalent
Francium
1.46 g/amp-hr
Rank: 47 (Overall)
0.69 g/amp-hr
Rank: 65 (Overall)
Beryllium
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8.10 Electron Work Function
Platinum
2.30 eV
Rank: 44 (Overall)
4.70 eV
Rank: 10 (Overall)
Cesium
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8.12 Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility
Corrosion, Ionization, Solubility
9 Atomic
9.1 Atomic Number
Tennessine
19
Rank: 87 (Overall)
26
Rank: 80 (Overall)
Lithium
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9.4 Electron Configuration
[Ar] 4s1
[Ar] 3d6 4s2
9.5 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
9.5.1 Crystal Lattice
9.6 Atom
9.6.1 Number of Protons
Tennessine
19
Rank: 86 (Overall)
26
Rank: 79 (Overall)
Lithium
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9.6.2 Number of Neutrons
Flerovium
20
Rank: 64 (Overall)
30
Rank: 60 (Overall)
Lithium
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10.1.2 Number of Electrons
Tennessine
19
Rank: 86 (Overall)
26
Rank: 79 (Overall)
Lithium
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10.2 Radius of an Atom
10.2.1 Atomic Radius
Cesium
227.00 pm
Rank: 3 (Overall)
126.00 pm
Rank: 48 (Overall)
Beryllium
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10.2.3 Covalent Radius
Francium
203.00 pm
Rank: 9 (Overall)
132.00 pm
Rank: 48 (Overall)
Beryllium
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10.3.2 Van der Waals Radius
Francium
275.00 pm
Rank: 5 (Overall)
200.00 pm
Rank: 28 (Overall)
Zinc
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10.4 Atomic Weight
Tennessine
39.10 amu
Rank: 81 (Overall)
55.85 amu
Rank: 74 (Overall)
Lithium
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10.5 Atomic Volume
Cesium
45.46 cm3/mol
Rank: 3 (Overall)
7.10 cm3/mol
Rank: 61 (Overall)
Manganese
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11.2 Adjacent Atomic Numbers
11.2.1 Previous Element
11.2.2 Next Element
11.3 Valence Electron Potential
Platinum
10.40 (-eV)
Rank: 63 (Overall)
67.00 (-eV)
Rank: 20 (Overall)
Francium
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11.5 Lattice Constant
Manganese
532.80 pm
Rank: 12 (Overall)
286.65 pm
Rank: 63 (Overall)
Beryllium
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11.6 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
11.7 Lattice C/A Ratio
Cadmium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
Hassium
0.86 g/cm3
Rank: 83 (Overall)
7.87 g/cm3
Rank: 52 (Overall)
Lithium
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12.2.1 Density When Liquid (at m.p.)
Osmium
0.83 g/cm3
Rank: 59 (Overall)
6.98 g/cm3
Rank: 35 (Overall)
Lithium
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12.4 Tensile Strength
Iron
Not Available
Rank: N/A (Overall)
11,000.00 MPa
Rank: 1 (Overall)
Indium
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12.6 Viscosity
Mercury
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
12.7 Vapor Pressure
12.7.1 Vapor Pressure at 1000 K
Strontium
Not Available
Rank: N/A (Overall)
0.00 (Pa)
Rank: 28 (Overall)
Cerium
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12.8.2 Vapor Pressure at 2000 K
Chromium
Not Available
Rank: N/A (Overall)
36.80 (Pa)
Rank: 5 (Overall)
Tungsten
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12.9 Elasticity properties
12.9.1 Shear Modulus
Osmium
1.30 GPa
Rank: 52 (Overall)
82.00 GPa
Rank: 11 (Overall)
Potassium
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12.9.3 Bulk Modulus
Osmium
3.10 GPa
Rank: 48 (Overall)
170.00 GPa
Rank: 10 (Overall)
Cesium
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12.9.4 Young's Modulus
Iridium
3.53 GPa
Rank: 56 (Overall)
211.00 GPa
Rank: 9 (Overall)
Cesium
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12.10 Poisson Ratio
Gallium
Not Available
Rank: N/A (Overall)
0.29
Rank: 15 (Overall)
Beryllium
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12.11 Other Mechanical Properties
NA
Ductile, Malleable, Weldable
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
Cobalt
0.86
Rank: 69 (Overall)
7.20
Rank: 45 (Overall)
Lithium
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13.1.2 Magnetic Ordering
Paramagnetic
Ferromagnetic
13.1.3 Permeability
Iron
Not Available
Rank: N/A (Overall)
6.3 * 10-3 H/m
Rank: 1 (Overall)
Bismuth
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13.1.4 Susceptibility
Iron
Not Available
Rank: N/A (Overall)
2,00,000.00
Rank: 1 (Overall)
Bismuth
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13.2 Electrical Properties
13.2.1 Electrical Property
Conductor
Conductor
13.2.2 Resistivity
Mercury
72.00 nΩ·m
Rank: 37 (Overall)
96.10 nΩ·m
Rank: 32 (Overall)
Thallium
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13.2.3 Electrical Conductivity
Silver
0.14 106/cm Ω
Rank: 14 (Overall)
0.10 106/cm Ω
Rank: 20 (Overall)
Plutonium
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13.2.4 Electron Affinity
Gold
48.40 kJ/mol
Rank: 22 (Overall)
15.70 kJ/mol
Rank: 34 (Overall)
Mercury
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14 Thermal
14.1 Specific Heat
Lithium
0.75 J/(kg K)
Rank: 6 (Overall)
0.44 J/(kg K)
Rank: 13 (Overall)
Americium
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14.2 Molar Heat Capacity
Americium
29.60 J/mol·K
Rank: 6 (Overall)
25.10 J/mol·K
Rank: 43 (Overall)
Beryllium
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14.3 Thermal Conductivity
Silver
102.50 W/m·K
Rank: 15 (Overall)
80.40 W/m·K
Rank: 22 (Overall)
Neptunium
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14.4 Critical Temperature
Lithium
2,223.00 K
Rank: 3 (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium
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14.5 Thermal Expansion
Cesium
83.30 µm/(m·K)
Rank: 3 (Overall)
11.80 µm/(m·K)
Rank: 33 (Overall)
Tungsten
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14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
Tungsten
77.50 kJ/mol
Rank: 55 (Overall)
351.00 kJ/mol
Rank: 23 (Overall)
Zinc
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14.6.2 Enthalpy of Fusion
Tungsten
2.32 kJ/mol
Rank: 60 (Overall)
14.90 kJ/mol
Rank: 22 (Overall)
Cesium
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14.6.3 Enthalpy of Atomization
Tungsten
89.50 kJ/mol
Rank: 58 (Overall)
414.20 kJ/mol
Rank: 19 (Overall)
Mercury
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14.7 Standard Molar Entropy
Protactinium
64.70 J/mol.K
Rank: 18 (Overall)
27.30 J/mol.K
Rank: 56 (Overall)
Beryllium
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