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Lead
Lead

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Silver



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Lead
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Lead vs Silver

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1 Periodic Table
1.1 Symbol
Pb
Ag
1.2 Group Number
Tennessine
14
Rank: 4 (Overall)
11
Rank: 7 (Overall)
Gadolinium
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1.3 Period Number
Uranium
6
Rank: 2 (Overall)
5
Rank: 3 (Overall)
Lithium
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1.4 Block
p block
d block
1.5 Element Family
Post-​Transition
Transition Metal
1.6 CAS Number
Roentgenium
7439921
Rank: 86 (Overall)
7440224
Rank: 58 (Overall)
Aluminium
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1.7 Space Group Name
Fm_ 3m
Fm_ 3m
1.8 Space Group Number
Sodium
225.00
Rank: 2 (Overall)
225.00
Rank: 2 (Overall)
Plutonium
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2 Facts
2.1 Interesting Facts
  • Galena mineral contains almost 87% of Lead metal in it, Galena is sulfide mineral.
  • The best available source of Lead metal today is by recycling automobile batteries.
  • It is the most reflective element.
  • Silver is the second most ductile metal after Gold.
  • It is also used in Dentistry as a dental alloys for clips and crowning.
2.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals
Earth's crust, Found in Minerals, Ores of metals
2.3 History
2.3.1 Who Discovered
Unknown
Unknown
2.3.2 Discovery
In Middle Easterns (7000 BCE)
Before 5000 BC
2.4 Abundance
2.4.1 Abundance In Universe
Iron
1 * 10-6 %
Rank: 16 (Overall)
6 * 10-8 %
Rank: 26 (Overall)
Thallium
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2.4.2 Abundance In Sun
Iron
~0.000001 %
Rank: 18 (Overall)
~0.0000001 %
Rank: 26 (Overall)
Beryllium
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2.4.3 Abundance In Meteorites
Iron
0.00 %
Rank: 23 (Overall)
0.00 %
Rank: 38 (Overall)
Gold
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2.4.4 Abundance In Earth's Crust
Aluminium
0.00 %
Rank: 26 (Overall)
0.00 %
Rank: 47 (Overall)
Radium
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2.4.5 Abundance In Oceans
Sodium
0.00 %
Rank: 22 (Overall)
0.00 %
Rank: 19 (Overall)
Protactinium
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2.4.6 Abundance In Humans
Calcium
0.00 %
Rank: 8 (Overall)
Not Available
Rank: N/A (Overall)
Radium
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3 Uses
3.1 Uses & Benefits
  • It is also used in insecticides, hair dyes and as an anti-knocking additive for petrol. But all these are banned by the government as Lead metal is known for detrimental to health.
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
3.1.1 Industrial Uses
Chemical Industry, Electrical Industry, Electronic Industry
Chemical Industry, Clothing Industry, Electrical Industry
3.1.2 Medical Uses
Surgical Instruments Manufacturing
Dentistry, Pharmaceutical Industry
3.1.3 Other Uses
Alloys
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Non Toxic
3.2.2 Present in Human Body
70% Post Transition Metals Metals have it !
60% Transition Metals Metals have it !
3.2.3 In Blood
Sodium
0.21 Blood/mg dm-3
Rank: 11 (Overall)
0.00 Blood/mg dm-3
Rank: 29 (Overall)
Plutonium
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3.2.4 In Bone
Calcium
30.00 p.p.m.
Rank: 10 (Overall)
0.44 p.p.m.
Rank: 20 (Overall)
Plutonium
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4 Physical
4.1 Melting Point
Tungsten
327.50 °C
Rank: 67 (Overall)
961.93 °C
Rank: 47 (Overall)
Francium
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4.2 Boiling Point
Tungsten
1,740.00 °C
Rank: 53 (Overall)
2,212.00 °C
Rank: 49 (Overall)
Flerovium
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Gray
Silvery White
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
Chromium
1.50
Rank: 18 (Overall)
2.50
Rank: 14 (Overall)
Cesium
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4.4.2 Brinell Hardness
Osmium
38.00 MPa
Rank: 49 (Overall)
251.00 MPa
Rank: 37 (Overall)
Cesium
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4.4.3 Vickers Hardness
Tungsten
Not Available
Rank: N/A (Overall)
229.00 MPa
Rank: 30 (Overall)
Palladium
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4.5 Speed of Sound
Technetium
1,190.00 m/s
Rank: 52 (Overall)
2,680.00 m/s
Rank: 34 (Overall)
Thallium
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4.6 Optical Properties
4.6.1 Refractive Index
Palladium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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4.6.2 Reflectivity
Silver
Not Available
Rank: N/A (Overall)
97.00 %
Rank: 1 (Overall)
Molybdenum
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4.7 Allotropes
20% Post Transition Metals Metals have it !
6% Transition Metals Metals have it !
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Pb
Ag
5.2 Isotopes
5.2.1 Known Isotopes
Palladium
35
Rank: 4 (Overall)
36
Rank: 3 (Overall)
Tennessine
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold
1.87
Rank: 13 (Overall)
1.93
Rank: 9 (Overall)
Francium
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5.3.2 Sanderson Electronegativity
Cobalt
2.29
Rank: 4 (Overall)
1.83
Rank: 11 (Overall)
Cesium
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5.3.3 Allred Rochow Electronegativity
Gallium
1.55
Rank: 11 (Overall)
1.42
Rank: 18 (Overall)
Cesium
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium
2.41
Rank: 2 (Overall)
1.47
Rank: 15 (Overall)
Cesium
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5.3.5 Allen Electronegativity
Berkelium
1.85
Rank: 8 (Overall)
1.87
Rank: 7 (Overall)
Cesium
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium
1.67
Rank: 51 (Overall)
2.07
Rank: 44 (Overall)
Gold
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium
715.60 kJ/mol
Rank: 31 (Overall)
731.00 kJ/mol
Rank: 27 (Overall)
Cesium
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5.5.2 2nd Energy Level
Chromium
1,450.50 kJ/mol
Rank: 43 (Overall)
2,070.00 kJ/mol
Rank: 11 (Overall)
Ruthenium
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5.5.3 3rd Energy Level
Chromium
3,081.50 kJ/mol
Rank: 23 (Overall)
3,361.00 kJ/mol
Rank: 19 (Overall)
Osmium
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5.5.4 4th Energy Level
Chromium
4,083.00 kJ/mol
Rank: 35 (Overall)
Not Available
Rank: N/A (Overall)
Thorium
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5.5.5 5th Energy Level
Chromium
6,640.00 kJ/mol
Rank: 20 (Overall)
Not Available
Rank: N/A (Overall)
Dubnium
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5.5.6 6th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium
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5.5.7 7th Energy level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bohrium
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5.5.8 8th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hassium
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5.5.9 9th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.10 10th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Strontium
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5.5.11 11th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.12 12th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.13 13th Energy Level
Titanium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.14 14th Energy Level
Vanadium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.15 15th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese
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5.5.16 16th Energy Level
Manganese
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron
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5.5.17 17th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt
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5.5.18 18th Energy Level
Cobalt
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel
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5.5.19 19th Energy Level
Nickel
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper
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5.5.20 20th Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.21 21st Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.22 22nd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.23 23rd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.24 24th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.25 25th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.26 26th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.27 27th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.28 28th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.29 29th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.30 30th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.6 Electrochemical Equivalent
Francium
3.87 g/amp-hr
Rank: 9 (Overall)
4.02 g/amp-hr
Rank: 7 (Overall)
Beryllium
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5.7 Electron Work Function
Platinum
4.25 eV
Rank: 21 (Overall)
4.26 eV
Rank: 20 (Overall)
Cesium
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5.8 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes
Chemical Stability, Ionization, Solubility
6 Atomic
6.1 Atomic Number
Tennessine
82
Rank: 34 (Overall)
47
Rank: 65 (Overall)
Lithium
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6.2 Electron Configuration
[Xe] 4f14 5d10 6s2 6p2
[Kr] 4d10 5s1
6.3 Crystal Structure
Face Centered Cubic (FCC)
Face Centered Cubic (FCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine
82
Rank: 34 (Overall)
47
Rank: 64 (Overall)
Lithium
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6.4.2 Number of Neutrons
Flerovium
125
Rank: 19 (Overall)
61
Rank: 47 (Overall)
Lithium
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6.4.3 Number of Electrons
Tennessine
82
Rank: 34 (Overall)
47
Rank: 64 (Overall)
Lithium
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium
175.00 pm
Rank: 19 (Overall)
144.00 pm
Rank: 36 (Overall)
Beryllium
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6.5.2 Covalent Radius
Francium
146.00 pm
Rank: 38 (Overall)
145.00 pm
Rank: 39 (Overall)
Beryllium
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6.5.3 Van der Waals Radius
Francium
202.00 pm
Rank: 27 (Overall)
172.00 pm
Rank: 38 (Overall)
Zinc
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6.6 Atomic Weight
Tennessine
207.20 amu
Rank: 30 (Overall)
107.87 amu
Rank: 59 (Overall)
Lithium
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6.7 Atomic Volume
Cesium
18.17 cm3/mol
Rank: 27 (Overall)
10.30 cm3/mol
Rank: 47 (Overall)
Manganese
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6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum
24.20 (-eV)
Rank: 57 (Overall)
11.40 (-eV)
Rank: 62 (Overall)
Francium
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6.10 Lattice Constant
Manganese
495.08 pm
Rank: 16 (Overall)
408.53 pm
Rank: 20 (Overall)
Beryllium
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6.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
6.12 Lattice C/A Ratio
Cadmium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium
11.34 g/cm3
Rank: 33 (Overall)
10.49 g/cm3
Rank: 35 (Overall)
Lithium
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7.1.2 Density When Liquid (at m.p.)
Osmium
10.66 g/cm3
Rank: 15 (Overall)
9.32 g/cm3
Rank: 21 (Overall)
Lithium
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7.2 Tensile Strength
Iron
12.00 MPa
Rank: 20 (Overall)
Not Available
Rank: N/A (Overall)
Indium
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7.3 Viscosity
Mercury
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium
1.64 (Pa)
Rank: 7 (Overall)
0.00 (Pa)
Rank: 14 (Overall)
Cerium
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7.4.2 Vapor Pressure at 2000 K
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Tungsten
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7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium
5.60 GPa
Rank: 47 (Overall)
30.00 GPa
Rank: 23 (Overall)
Potassium
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7.5.2 Bulk Modulus
Osmium
46.00 GPa
Rank: 24 (Overall)
100.00 GPa
Rank: 16 (Overall)
Cesium
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7.5.3 Young's Modulus
Iridium
16.00 GPa
Rank: 48 (Overall)
83.00 GPa
Rank: 23 (Overall)
Cesium
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7.6 Poisson Ratio
Gallium
0.44
Rank: 3 (Overall)
0.37
Rank: 7 (Overall)
Beryllium
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7.7 Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt
11.35
Rank: 25 (Overall)
10.50
Rank: 26 (Overall)
Lithium
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8.1.2 Magnetic Ordering
Diamagnetic
Diamagnetic
8.1.3 Permeability
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
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8.1.4 Susceptibility
Iron
Not Available
Rank: N/A (Overall)
0.00
Rank: 5 (Overall)
Bismuth
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8.2 Electrical Properties
8.2.1 Electrical Property
Poor Conductor
Conductor
8.2.2 Resistivity
Mercury
208.00 nΩ·m
Rank: 16 (Overall)
15.87 nΩ·m
Rank: 51 (Overall)
Thallium
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8.2.3 Electrical Conductivity
Silver
0.05 106/cm Ω
Rank: 36 (Overall)
0.63 106/cm Ω
Rank: 1 (Overall)
Plutonium
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8.2.4 Electron Affinity
Gold
35.10 kJ/mol
Rank: 28 (Overall)
125.60 kJ/mol
Rank: 5 (Overall)
Mercury
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9 Thermal
9.1 Specific Heat
Lithium
0.13 J/(kg K)
Rank: 39 (Overall)
0.24 J/(kg K)
Rank: 25 (Overall)
Americium
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9.2 Molar Heat Capacity
Americium
26.65 J/mol·K
Rank: 26 (Overall)
25.35 J/mol·K
Rank: 42 (Overall)
Beryllium
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9.3 Thermal Conductivity
Silver
35.30 W/m·K
Rank: 38 (Overall)
429.00 W/m·K
Rank: 1 (Overall)
Neptunium
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9.4 Critical Temperature
Lithium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium
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9.5 Thermal Expansion
Cesium
28.90 µm/(m·K)
Rank: 13 (Overall)
18.90 µm/(m·K)
Rank: 23 (Overall)
Tungsten
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9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten
179.40 kJ/mol
Rank: 43 (Overall)
255.10 kJ/mol
Rank: 37 (Overall)
Zinc
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9.6.2 Enthalpy of Fusion
Tungsten
4.77 kJ/mol
Rank: 53 (Overall)
11.30 kJ/mol
Rank: 31 (Overall)
Cesium
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9.6.3 Enthalpy of Atomization
Tungsten
194.60 kJ/mol
Rank: 45 (Overall)
284.50 kJ/mol
Rank: 37 (Overall)
Mercury
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9.7 Standard Molar Entropy
Protactinium
64.80 J/mol.K
Rank: 17 (Overall)
42.60 J/mol.K
Rank: 35 (Overall)
Beryllium
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