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Praseodymium
Praseodymium
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Promethium
Promethium
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Praseodymium
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Promethium

Properties of Praseodymium and Promethium
Add ⊕
1 Physical
1 Melting Point
Properties of T..
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935.00 °C
Rank: 48 (Overall)▶
1,042.00 °C
Rank: 43 (Overall)▶
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Properties of Francium
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2 Boiling Point
Properties of T..
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3,130.00 °C
Rank: 27 (Overall)▶
3,000.00 °C
Rank: 31 (Overall)▶
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Properties of Flerovium
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3 Hardness
3.1 Mohs Hardness
Properties of C..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cesium
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3.2 Brinell Hardness
Properties of O..
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481.00 MPa
Rank: 24 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cesium
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3.3 Vickers Hardness
Properties of T..
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400.00 MPa
Rank: 25 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Palladium
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4 Optical Properties
4.1 Refractive Index
Properties of P..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Mercury
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4.2 Reflectivity
Properties of S..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Molybdenum
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5 Speed of Sound
Properties of T..
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2,280.00 m/s
Rank: 40 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Thallium
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6 Allotropes
✔ ✘
No Lanthanide Series Metals has it !
✔ ✘
No Lanthanide Series Metals has it !
6.1 α Allotropes
Not Available
Not Available
6.2 β Allotropes
Not Available
Not Available
6.3 γ Allotropes
Not Available
Not Available
2 Chemical
1 Chemical Formula
Pr
Pm
2 Isotopes
2.1 Known Isotopes
Properties of P..
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31
Rank: 8 (Overall)▶
27
Rank: 12 (Overall)▶
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Properties of Tennessine
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3 Electronegativity
3.1 Pauling Electronegativity
Properties of G..
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1.13
Rank: 42 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Francium
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3.2 Sanderson Electronegativity
Properties of C..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cesium
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3.3 Allred Rochow Electronegativity
Properties of G..
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1.07
Rank: 32 (Overall)▶
1.07
Rank: 32 (Overall)▶
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Properties of Cesium
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3.4 Mulliken-Jaffe Electronegativity
Properties of P..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cesium
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3.5 Allen Electronegativity
Properties of B..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cesium
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4 Electropositivity
4.1 Pauling Electropositivity
Properties of F..
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2.87
Rank: 12 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Gold
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5 Ionization Energies
5.1 1st Energy Level
Properties of C..
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527.00 kJ/mol
Rank: 78 (Overall)▶
540.00 kJ/mol
Rank: 73 (Overall)▶
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Properties of Cesium
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5.2 2nd Energy Level
Properties of C..
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1,020.00 kJ/mol
Rank: 80 (Overall)▶
1,050.00 kJ/mol
Rank: 78 (Overall)▶
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Properties of Ruthenium
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5.3 3rd Energy Level
Properties of C..
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2,086.00 kJ/mol
Rank: 70 (Overall)▶
2,150.00 kJ/mol
Rank: 67 (Overall)▶
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Properties of Osmium
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6 Electrochemical Equivalent
Properties of F..
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1.75 g/amp-hr
Rank: 40 (Overall)▶
1.80 g/amp-hr
Rank: 36 (Overall)▶
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Properties of Beryllium
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3 Electron Work Function
Properties of P..
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2.70 eV
Rank: 41 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cesium
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5 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Solubility
2 Mechanical
1 Density
1.1 Density At Room Temperature
Properties of H..
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6.77 g/cm3
Rank: 63 (Overall)▶
7.26 g/cm3
Rank: 56 (Overall)▶
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Properties of Lithium
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1.2 Density When Liquid (at m.p.)
Properties of O..
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6.50 g/cm3
Rank: 39 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Lithium
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5 Vapor Pressure
5.1 Vapor Pressure at 1000 K
Properties of S..
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0.00 (Pa)
Rank: 25 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Cerium
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7.1 Vapor Pressure at 2000 K
Properties of C..
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13.20 (Pa)
Rank: 7 (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Tungsten
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8 Tensile Strength
Properties of I..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Indium
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5 Viscosity
Properties of M..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Mercury
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6 Elasticity properties
6.1 Shear Modulus
Properties of O..
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14.80 GPa
Rank: 39 (Overall)▶
18.00 GPa
Rank: 36 (Overall)▶
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Properties of Potassium
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6.3 Bulk Modulus
Properties of O..
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28.80 GPa
Rank: 40 (Overall)▶
33.00 GPa
Rank: 36 (Overall)▶
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Properties of Cesium
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6.5 Young's Modulus
Properties of I..
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37.30 GPa
Rank: 41 (Overall)▶
46.00 GPa
Rank: 38 (Overall)▶
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Properties of Cesium
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7 Poisson Ratio
Properties of G..
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0.28
Rank: 16 (Overall)▶
0.28
Rank: 17 (Overall)▶
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Properties of Beryllium
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8 Other Mechanical Properties
Ductile, Malleable
NA
4 Periodic Table
1 Symbol
Pr
Pm
2 Group Number
Properties of T..
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Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
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Properties of Gadolinium
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3 Period Number
Properties of U..
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6
Rank: 2 (Overall)▶
6
Rank: 2 (Overall)▶
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Properties of Lithium
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4 Block
f block
f block
5 Element Family
Lanthanide
Lanthanide
5 Atomic
1 Atomic Number
Properties of T..
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59
Rank: 57 (Overall)▶
61
Rank: 55 (Overall)▶
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Properties of Lithium
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2 Atomic Weight
Properties of T..
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140.91 amu
Rank: 51 (Overall)▶
145.00 amu
Rank: 49 (Overall)▶
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Properties of Lithium
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4 Atomic Volume
Properties of C..
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20.80 cm3/mol
Rank: 15 (Overall)▶
22.39 cm3/mol
Rank: 12 (Overall)▶
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Properties of Manganese
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5 Electron Configuration
[Xe] 4f3 6s2
[Xe] 4f5 6s2
6 Valence Electron Potential
Properties of P..
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42.64 (-eV)
Rank: 42 (Overall)▶
44.10 (-eV)
Rank: 39 (Overall)▶
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Properties of Francium
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2 Atom
2.1 Number of Protons
Properties of T..
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59
Rank: 56 (Overall)▶
61
Rank: 54 (Overall)▶
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Properties of Lithium
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3.1 Number of Neutrons
Properties of F..
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82
Rank: 41 (Overall)▶
84
Rank: 40 (Overall)▶
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Properties of Lithium
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3.2 Number of Electrons
Properties of T..
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59
Rank: 56 (Overall)▶
61
Rank: 54 (Overall)▶
▲
Properties of Lithium
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6 Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
6.1 Crystal Lattice
7 Radius of an Atom
7.1 Atomic Radius
Properties of C..
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182.00 pm
Rank: 11 (Overall)▶
183.00 pm
Rank: 10 (Overall)▶
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Properties of Beryllium
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7.3 Covalent Radius
Properties of F..
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203.00 pm
Rank: 9 (Overall)▶
199.00 pm
Rank: 12 (Overall)▶
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Properties of Beryllium
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7.5 Van der Waals Radius
Properties of F..
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239.00 pm
Rank: 14 (Overall)▶
236.00 pm
Rank: 16 (Overall)▶
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Properties of Zinc
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8 Lattice Constant
Properties of M..
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367.25 pm
Rank: 29 (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Beryllium
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◀ ▶ ADD ⊕
10 Lattice Angles
π/2, π/2, 2 π/3
Unknown
11 Lattice C/A Ratio
Properties of C..
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1.61
Rank: 4 (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Beryllium
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13 Adjacent Atomic Numbers
13.1 Next Element
13.2 Previous Element
8 Magnetic
1 Electrical Properties
1.1 Resistivity
Properties of M..
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▼
0.70 nΩ·m
Rank: 65 (Overall)▶
0.75 nΩ·m
Rank: 64 (Overall)▶
▲
Properties of Thallium
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◀ ▶ ADD ⊕
1.3 Electrical Conductivity
Properties of S..
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0.01 106/cm Ω
Rank: 50 (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Plutonium
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2.3 Electron Affinity
Properties of G..
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50.00 kJ/mol
Rank: 21 (Overall)▶
50.00 kJ/mol
Rank: 21 (Overall)▶
▲
Properties of Mercury
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2.2 Electrical Property
Conductor
Conductor
3 Magnetic Characteristics
3.1 Specific Gravity
Properties of C..
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▼
6.77
Rank: 50 (Overall)▶
7.26
Rank: 43 (Overall)▶
▲
Properties of Lithium
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◀ ▶ ADD ⊕
4.2 Magnetic Ordering
Paramagnetic
Paramagnetic
4.3 Permeability
Properties of I..
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▼
Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Bismuth
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◀ ▶ ADD ⊕
4.4 Susceptibility
Properties of I..
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▼
Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Bismuth
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◀ ▶ ADD ⊕
10 Thermal
1 Specific Heat
Properties of L..
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0.19 J/(kg K)
Rank: 32 (Overall)▶
0.18 J/(kg K)
Rank: 33 (Overall)▶
▲
Properties of Americium
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◀ ▶ ADD ⊕
2 Thermal Conductivity
Properties of S..
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▼
12.50 W/m·K
Rank: 59 (Overall)▶
17.90 W/m·K
Rank: 47 (Overall)▶
▲
Properties of Neptunium
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◀ ▶ ADD ⊕
3 Critical Temperature
Properties of L..
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▼
Not Available
Rank: N/A (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Ytterbium
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4 Molar Heat Capacity
Properties of A..
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▼
27.20 J/mol·K
Rank: 18 (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Beryllium
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◀ ▶ ADD ⊕
5 Thermal Expansion
Properties of C..
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6.70 µm/(m·K)
Rank: 50 (Overall)▶
9.00 µm/(m·K)
Rank: 43 (Overall)▶
▲
Properties of Tungsten
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◀ ▶ ADD ⊕
7 Standard Molar Entropy
Properties of P..
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▶
▼
73.20 J/mol.K
Rank: 10 (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Beryllium
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◀ ▶ ADD ⊕
9 Enthalpy
9.1 Enthalpy of Vaporization
Properties of T..
⊕
▶
▼
296.80 kJ/mol
Rank: 29 (Overall)▶
Not Available
Rank: N/A (Overall)▶
▲
Properties of Zinc
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◀ ▶ ADD ⊕
9.3 Enthalpy of Fusion
Properties of T..
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▼
6.89 kJ/mol
Rank: 48 (Overall)▶
7.50 kJ/mol
Rank: 43 (Overall)▶
▲
Properties of Cesium
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◀ ▶ ADD ⊕
9.4 Enthalpy of Atomization
Properties of T..
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▶
▼
368.00 kJ/mol
Rank: 24 (Overall)▶
310.00 kJ/mol
Rank: 34 (Overall)▶
▲
Properties of Mercury
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◀ ▶ ADD ⊕

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