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Uranium
Uranium

Curium
Curium



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Uranium vs Curium

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1 Periodic Table
1.1 Symbol
U
Cm
1.2 Group Number
0NA
Gadolinium
0 17
1.3 Period Number
77
Lithium
2 7
1.4 Block
f block
f block
1.5 Element Family
Actinide
Actinide
1.6 CAS Number
74406117440519
Aluminium
7429905 54386242
1.7 Space Group Name
Cmcm
Not Available
1.8 Space Group Number
63.00NA
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
2.2 Sources
Earth's crust, Mining, Ores of Minerals
Bombarding Plutonium with Helium Ions
2.3 History
2.3.1 Who Discovered
Not Available
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
2.3.2 Discovery
In 1789
In 1944
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-8 %NA
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000001 %~-9999 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  • Curium metal is used to provide power to electrical equipment for space missions.
3.1.1 Industrial Uses
Ammunition Industry, Chemical Industry
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues
Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Unknown
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium
0 1970
3.2.4 In Bone
NA0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
1,132.00 °C1,340.00 °C
Francium
27 3410
4.2 Boiling Point
3,818.00 °C3,110.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery Gray
Silver
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
6.00NA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
2,350.00 MPaNA
Cesium
0.14 3490
4.4.3 Vickers Hardness
1,960.00 MPaNA
Palladium
121 3430
4.5 Speed of Sound
3,155.00 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum
58 97
4.7 Allotropes
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
U
Cm
5.2 Isotopes
5.2.1 Known Isotopes
2515
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.381.30
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.221.20
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
NANA
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.622.70
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
597.60 kJ/mol581.00 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,420.00 kJ/mol1,196.00 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
1,900.00 kJ/mol2,026.00 kJ/mol
Osmium
1600 34230
5.5.4 4th Energy Level
3,145.00 kJ/mol3,550.00 kJ/mol
Thorium
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium
14110 134700
5.5.10 10th Energy Level
NANA
Strontium
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum
26930 76015
1.1.1 14th Energy Level
NANA
Molybdenum
29196 86450
1.4.2 15th Energy Level
NANA
Manganese
41987 97510
1.4.3 16th Energy Level
NANA
Iron
47206 109480
1.4.5 17th Energy Level
NANA
Cobalt
52737 122200
1.4.7 18th Energy Level
NANA
Nickel
58570 134810
1.4.8 19th Energy Level
NANA
Copper
64702 148700
1.5.2 20th Energy Level
NANA
Molybdenum
80400 171200
1.5.4 21st Energy Level
NANA
Molybdenum
87000 179100
1.5.5 22nd Energy Level
NANA
Molybdenum
93400 184900
1.5.7 23rd Energy Level
NANA
Molybdenum
98420 198800
1.6.1 24th Energy Level
NANA
Molybdenum
104400 195200
1.6.2 25th Energy Level
NANA
Molybdenum
121900 121900
1.7.1 26th Energy Level
NANA
Molybdenum
127700 127700
1.7.2 27th Energy Level
NANA
Molybdenum
133800 133800
1.9.1 28th Energy Level
NANA
Molybdenum
139800 139800
1.9.2 29th Energy Level
NANA
Molybdenum
148100 148100
1.10.1 30th Energy Level
NANA
Molybdenum
154500 154500
1.11 Electrochemical Equivalent
1.48 g/amp-hr3.07 g/amp-hr
Beryllium
0.16812 8.3209
1.14 Electron Work Function
3.63 eVNA
Cesium
2.14 5.65
1.15 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes
2 Atomic
2.1 Atomic Number
9296
Lithium
3 117
2.2 Electron Configuration
[Rn] 5f3 6d1 7s2
[Rn] 5f7 6d1 7s2
2.3 Crystal Structure
Orthorhombic (ORTH)
Double Hexagonal Close Packed (DHCP)
2.3.1 Crystal Lattice
2.4 Atom
2.4.1 Number of Protons
9296
Lithium
3 117
2.4.2 Number of Neutrons
146151
Lithium
4 184
2.4.3 Number of Electrons
9296
Lithium
3 117
2.5 Radius of an Atom
2.5.1 Atomic Radius
156.00 pm174.00 pm
Beryllium
112 265
2.5.2 Covalent Radius
196.00 pm169.00 pm
Beryllium
96 260
2.5.3 Van der Waals Radius
186.00 pm200.00 pm
Zinc
139 348
2.6 Atomic Weight
238.03 amu247.00 amu
Lithium
6.94 294
2.7 Atomic Volume
12.59 cm3/mol18.28 cm3/mol
Manganese
1.39 71.07
2.8 Adjacent Atomic Numbers
2.8.1 Previous Element
2.8.2 Next Element
2.9 Valence Electron Potential
170.00 (-eV)44.50 (-eV)
Francium
8 392.42
2.10 Lattice Constant
295.08 pmNA
Beryllium
228.58 891.25
2.11 Lattice Angles
π/2, π/2, π/2
NA
2.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
3 Mechanical
3.1 Density
3.1.1 Density At Room Temperature
19.10 g/cm313.51 g/cm3
Lithium
0.534 40.7
3.1.2 Density When Liquid (at m.p.)
17.30 g/cm313.85 g/cm3
Lithium
0.512 20
3.2 Tensile Strength
NANA
Indium
2.5 11000
3.3 Viscosity
NANA
Mercury
0.001526 0.001526
3.4 Vapor Pressure
3.4.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
3.4.2 Vapor Pressure at 2000 K
0.01 (Pa)NA
Tungsten
2.62E-10 774
3.5 Elasticity properties
3.5.1 Shear Modulus
111.00 GPaNA
Potassium
1.3 222
3.5.2 Bulk Modulus
100.00 GPaNA
Cesium
1.6 462
3.5.3 Young's Modulus
208.00 GPaNA
Cesium
1.7 528
3.6 Poisson Ratio
0.23NA
Beryllium
0.032 0.47
3.7 Other Mechanical Properties
Ductile, Malleable
Unknown
4 Magnetic
4.1 Magnetic Characteristics
4.1.1 Specific Gravity
18.8013.51
Lithium
0.53 4500
4.1.2 Magnetic Ordering
Paramagnetic
Antiferromagnetic
4.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
4.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
4.2 Electrical Properties
4.2.1 Electrical Property
Poor Conductor
Unknown
4.2.2 Resistivity
0.28 nΩ·m1.25 nΩ·m
Thallium
0.18 961
4.2.3 Electrical Conductivity
0.04 106/cm ΩNA
Plutonium
0.00666 0.63
4.2.4 Electron Affinity
NANA
Mercury
0 222.8
5 Thermal
5.1 Specific Heat
0.12 J/(kg K)NA
Americium
0.11 3.6
5.2 Molar Heat Capacity
27.67 J/mol·KNA
Beryllium
16.443 62.7
5.3 Thermal Conductivity
27.50 W/m·KNA
Neptunium
6.3 429
5.4 Critical Temperature
NANA
Ytterbium
26.3 3223
5.5 Thermal Expansion
13.90 µm/(m·K)NA
Tungsten
4.5 97
5.6 Enthalpy
5.6.1 Enthalpy of Vaporization
477.00 kJ/molNA
Zinc
7.32 799.1
5.6.2 Enthalpy of Fusion
15.48 kJ/mol15.00 kJ/mol
Cesium
2.1 35.23
5.6.3 Enthalpy of Atomization
489.50 kJ/molNA
Mercury
61.5 837
5.7 Standard Molar Entropy
50.20 J/mol.KNA
Beryllium
9.5 198.1