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Curium
Curium

Berkelium
Berkelium



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Berkelium

Curium Berkelium Comparison

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1 Periodic Table
1.1 Symbol
Cm
Bk
1.2 Group Number
NANA
Gadolinium Metal
0 17
1.3 Period Number
77
Lithium Metal
2 7
1.3 Block
f block
f block
1.4 Element Family
Actinide
Actinide
1.5 CAS Number
74405197440406
Aluminium Metal
7429905 54386242
1.7 Space Group Name
Not Available
P63/mmc
1.8 Space Group Number
NA194.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
2.2 Sources
Bombarding Plutonium with Helium Ions
Bombarding Americium with Alpha Particles.
2.3 History
2.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
Lawrence Berkeley National Laboratory
2.3.2 Discovery
In 1944
In 1949
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium Metal
5E-09 0.11
2.9.1 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
2.11.1 Abundance In Meteorites
NANA
Gold Metal
1.7E-07 22
4.4.2 Abundance In Earth's Crust
NANA
Radium Metal
9.9E-12 8.1
4.4.5 Abundance In Oceans
NANA
Protactinium Metal
2E-23 1.1
4.4.8 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
5 Uses
5.1 Uses & Benefits
  • Curium metal is used to provide power to electrical equipment for space missions.
  • This metal is very rare and has no commercial uses.
5.1.1 Industrial Uses
NA
NA
5.1.2 Medical Uses
NA
NA
5.1.3 Other Uses
Research Purposes
NA
5.2 Biological Properties
5.2.1 Toxicity
Unknown
Unknown
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium Metal
0 1970
5.2.6 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium Metal
0 170000
6 Physical
6.1 Melting Point
1,340.00 °C986.00 °C
Francium Metal
27 3410
7.3 Boiling Point
3,110.00 °C2,627.00 °C
Flerovium Metal
147 5660
8.3 Appearance
8.3.1 Physical State
Solid
Solid
8.3.2 Color
Silver
Silver
8.3.3 Luster
Metallic
Metallic
8.4 Hardness
8.4.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
9.1.2 Brinell Hardness
NANA
Cesium Metal
0.14 3490
10.2.1 Vickers Hardness
NANA
Palladium Metal
121 3430
10.5 Speed of Sound
NANA
Thallium Metal
818 16200
10.7 Optical Properties
10.7.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
10.9.2 Reflectivity
NANA
Molybdenum Metal
58 97
10.10 Allotropes
10.10.1 α Allotropes
Not Available
Not Available
10.10.2 β Allotropes
Not Available
Not Available
10.10.3 γ Allotropes
Not Available
Not Available
11 Chemical
11.1 Chemical Formula
Cm
Bk
11.2 Isotopes
11.2.1 Known Isotopes
1514
Tennessine Metal
0 38
11.4 Electronegativity
11.4.1 Pauling Electronegativity
1.301.30
Francium Metal
0.7 2.54
11.5.3 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
12.1.1 Allred Rochow Electronegativity
1.201.20
Cesium Metal
0.86 1.82
12.3.1 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
12.5.2 Allen Electronegativity
NA2.70
Cesium Metal
0.659 2.7
12.6 Electropositivity
12.6.1 Pauling Electropositivity
2.702.70
Gold Metal
1.46 3.3
13.3 Ionization Energies
13.3.1 1st Energy Level
581.00 kJ/mol601.00 kJ/mol
Cesium Metal
375.7 26130
13.3.4 2nd Energy Level
1,196.00 kJ/mol1,186.00 kJ/mol
Ruthenium Metal
710.2162 28750
13.4.2 3rd Energy Level
2,026.00 kJ/mol2,152.00 kJ/mol
Osmium Metal
1600 34230
13.4.5 4th Energy Level
3,550.00 kJ/mol3,434.00 kJ/mol
Thorium Metal
2780 37066
13.5.3 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
13.6.2 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
13.6.5 7th Energy level
NANA
Bohrium Metal
7226.8 114300
13.6.8 8th Energy Level
NANA
Hassium Metal
8857.4 125300
13.6.9 9th Energy Level
NANA
Yttrium Metal
14110 134700
13.7.2 10th Energy Level
NANA
Strontium Metal
17100 144300
13.8.2 11th Energy Level
NANA
Yttrium Metal
19900 169988
13.8.8 12th Energy Level
NANA
Molybdenum Metal
22219 189368
13.8.11 13th Energy Level
NANA
Molybdenum Metal
26930 76015
13.8.14 14th Energy Level
NANA
Molybdenum Metal
29196 86450
13.8.17 15th Energy Level
NANA
Manganese Metal
41987 97510
13.8.19 16th Energy Level
NANA
Iron Metal
47206 109480
13.8.22 17th Energy Level
NANA
Cobalt Metal
52737 122200
13.8.25 18th Energy Level
NANA
Nickel Metal
58570 134810
13.8.27 19th Energy Level
NANA
Copper Metal
64702 148700
13.8.30 20th Energy Level
NANA
Molybdenum Metal
80400 171200
13.8.32 21st Energy Level
NANA
Molybdenum Metal
87000 179100
13.8.35 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
13.8.36 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
13.8.39 24th Energy Level
NANA
Molybdenum Metal
104400 195200
13.8.41 25th Energy Level
NANA
Molybdenum Metal
121900 121900
13.8.44 26th Energy Level
NANA
Molybdenum Metal
127700 127700
13.8.46 27th Energy Level
NANA
Molybdenum Metal
133800 133800
13.8.49 28th Energy Level
NANA
Molybdenum Metal
139800 139800
13.8.51 29th Energy Level
NANA
Molybdenum Metal
148100 148100
13.8.54 30th Energy Level
NANA
Molybdenum Metal
154500 154500
13.9 Electrochemical Equivalent
3.07 g/amp-hr3.07 g/amp-hr
Beryllium Metal
0.16812 8.3209
13.10 Electron Work Function
NANA
Cesium Metal
2.14 5.65
13.11 Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity
14 Atomic
14.1 Atomic Number
9697
Lithium Metal
3 117
14.2 Electron Configuration
[Rn] 5f7 6d1 7s2
[Rn] 5f9 7s2
14.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Double Hexagonal Close Packed (DHCP)
14.3.1 Crystal Lattice
14.4 Atom
14.4.1 Number of Protons
9697
Lithium Metal
3 117
1.3.2 Number of Neutrons
151150
Lithium Metal
4 184
2.1.1 Number of Electrons
9697
Lithium Metal
3 117
2.8 Radius of an Atom
2.8.1 Atomic Radius
174.00 pm170.00 pm
Beryllium Metal
112 265
2.9.3 Covalent Radius
169.00 pmNA
Beryllium Metal
96 260
2.11.3 Van der Waals Radius
200.00 pmNA
Zinc Metal
139 348
3.3 Atomic Weight
247.00 amu247.00 amu
Lithium Metal
6.94 294
3.6 Atomic Volume
18.28 cm3/molNA
Manganese Metal
1.39 71.07
3.8 Adjacent Atomic Numbers
3.8.1 Previous Element
3.8.2 Next Element
3.9 Valence Electron Potential
44.50 (-eV)45.50 (-eV)
Francium Metal
8 392.42
3.11 Lattice Constant
NA341.60 pm
Beryllium Metal
228.58 891.25
3.14 Lattice Angles
NA
π/2, π/2, 2 π/3
3.15 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
4 Mechanical
4.1 Density
4.1.1 Density At Room Temperature
13.51 g/cm314.78 g/cm3
Lithium Metal
0.534 40.7
5.2.1 Density When Liquid (at m.p.)
13.85 g/cm313.25 g/cm3
Lithium Metal
0.512 20
6.8 Tensile Strength
NANA
Indium Metal
2.5 11000
6.9 Viscosity
NANA
Mercury Metal
0.001526 0.001526
7.2 Vapor Pressure
7.2.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
7.5.1 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
8.2 Elasticity properties
8.2.1 Shear Modulus
NANA
Potassium Metal
1.3 222
8.5.3 Bulk Modulus
NANA
Cesium Metal
1.6 462
8.5.6 Young's Modulus
NANA
Cesium Metal
1.7 528
8.9 Poisson Ratio
NANA
Beryllium Metal
0.032 0.47
8.12 Other Mechanical Properties
Unknown
NA
9 Magnetic
9.2 Magnetic Characteristics
9.2.2 Specific Gravity
13.5114.00
Lithium Metal
0.53 4500
9.2.4 Magnetic Ordering
Antiferromagnetic
Paramagnetic
9.2.5 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
10.2.2 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
10.3 Electrical Properties
10.3.1 Electrical Property
Unknown
Conductor
10.3.2 Resistivity
1.25 nΩ·mNA
Thallium Metal
0.18 961
10.7.2 Electrical Conductivity
NANA
Plutonium Metal
0.00666 0.63
10.8.2 Electron Affinity
NANA
Mercury Metal
0 222.8
12 Thermal
12.1 Specific Heat
NANA
Americium Metal
0.11 3.6
12.2 Molar Heat Capacity
NANA
Beryllium Metal
16.443 62.7
12.4 Thermal Conductivity
NA10.00 W/m·K
Neptunium Metal
6.3 429
12.7 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
12.10 Thermal Expansion
NANA
Tungsten Metal
4.5 97
13.3 Enthalpy
13.3.1 Enthalpy of Vaporization
NANA
Zinc Metal
7.32 799.1
13.3.6 Enthalpy of Fusion
15.00 kJ/molNA
Cesium Metal
2.1 35.23
13.5.2 Enthalpy of Atomization
NANA
Mercury Metal
61.5 837
13.6 Standard Molar Entropy
NANA
Beryllium Metal
9.5 198.1