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Uranium Calcium Comparison

Uranium
Calcium
Calcium Uranium comparison


Periodic Table
Symbol
U   
Ca   
Group Number
0   
18
2   
16
Period Number
7   
4   
Block
f block   
s block   
Element Family
Actinide   
Alkaline Earth   
CAS Number
7440611   
28
7440702   
21
Space Group Name
Cmcm   
Fm_ 3m   
Space Group Number
63.00   
10
225.00   
2
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Calcium ranks 5th rank in the list of earth’s abundance Percentage.
  • It is found in the compound state.
  • Gypsum or calcium sulfate is used as plaster and plaster of paris.
  
Sources
Earth's crust, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Not Available   
Humphry Davy   
Discovery
In 1789   
In 1808   
Abundance
  
  
Abundance In Universe
2 * 10-8 %   
29
7 * 10-3 %   
3
Abundance In Sun
~0.0000001 %   
26
~0.007 %   
4
Abundance In Meteorites
0.00 %   
99+
1.10 %   
4
Abundance In Earth's Crust
0.00 %   
36
5.00 %   
3
Abundance In Oceans
0.00 %   
11
0.00 %   
5
Abundance In Humans
Not Available   
1.40 %   
1
Uses
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.
  
  • It is used as a reducing agent while preparing metals like thorium and uranium. It is also used as an alloying agent for metals such as aluminum, copper & lead.
  • Calcium carbonate or lime stone is used in cement.
  
Industrial Uses
Ammunition Industry, Chemical Industry   
Chemical Industry   
Medical Uses
NA   
Dentistry, Pharmaceutical Industry   
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Alloys   
Biological Properties
  
  
Toxicity
Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
60.50 Blood/mg dm-3   
4
In Bone
Not Available   
170,000.00 p.p.m.   
1
Physical Properties
Melting Point
1,132.00 °C   
39
839.00 °C   
99+
Boiling Point
3,818.00 °C   
16
1,484.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gray   
Gray   
Luster
Metallic   
NA   
Hardness
  
  
Mohs Hardness
6.00   
6
1.75   
17
Brinell Hardness
2,350.00 MPa   
2
170.00 MPa   
99+
Vickers Hardness
1,960.00 MPa   
2
Not Available   
Speed of Sound
3,155.00 m/s   
25
3,810.00 m/s   
19
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
U   
Ca   
Isotopes
  
  
Known Isotopes
25   
14
19   
20
Electronegativity
  
  
Pauling Electronegativity
1.38   
28
1.00   
99+
Sanderson Electronegativity
Not Available   
0.95   
24
Allred Rochow Electronegativity
1.22   
26
1.04   
34
Mulliken-Jaffe Electronegativity
Not Available   
1.08   
17
Allen Electronegativity
Not Available   
1.03   
39
Electropositivity
  
  
Pauling Electropositivity
2.62   
26
3.00   
9
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol   
99+
589.80 kJ/mol   
99+
2nd Energy Level
1,420.00 kJ/mol   
99+
1,145.40 kJ/mol   
99+
3rd Energy Level
1,900.00 kJ/mol   
99+
4,912.40 kJ/mol   
7
4th Energy Level
3,145.00 kJ/mol   
99+
6,491.00 kJ/mol   
7
5th Energy Level
Not Available   
8,153.00 kJ/mol   
7
6th Energy Level
Not Available   
10,496.00 kJ/mol   
8
7th Energy level
Not Available   
12,270.00 kJ/mol   
12
8th Energy Level
Not Available   
14,206.00 kJ/mol   
15
9th Energy Level
Not Available   
18,191.00 kJ/mol   
12
10th Energy Level
Not Available   
20,385.00 kJ/mol   
16
11th Energy Level
Not Available   
57,110.00 kJ/mol   
3
12th Energy Level
Not Available   
63,410.00 kJ/mol   
3
13th Energy Level
Not Available   
70,110.00 kJ/mol   
3
14th Energy Level
Not Available   
78,890.00 kJ/mol   
4
15th Energy Level
Not Available   
86,310.00 kJ/mol   
5
16th Energy Level
Not Available   
94,000.00 kJ/mol   
6
17th Energy Level
Not Available   
104,900.00 kJ/mol   
7
18th Energy Level
Not Available   
111,711.00 kJ/mol   
8
Electrochemical Equivalent
1.48 g/amp-hr   
99+
0.75 g/amp-hr   
99+
Electron Work Function
3.63 eV   
30
2.87 eV   
38
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Flammability, Ionization, Solubility   
Atomic Properties
Atomic Number
92   
26
20   
99+
Electron Configuration
[Rn] 5f3 6d1 7s2   
[Ar] 4s2   
Crystal Structure
Orthorhombic (ORTH)   
Face Centered Cubic (FCC)   
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100   
FCC-Crystal-Structure-of-Calcium.jpg#100   
Atom
  
  
Number of Protons
92   
26
20   
99+
Number of Neutrons
146   
13
20   
99+
Number of Electrons
92   
26
20   
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
197.00 pm   
6
Covalent Radius
196.00 pm   
14
176.00 pm   
22
Van der Waals Radius
186.00 pm   
33
231.00 pm   
19
Atomic Weight
238.03 amu   
21
40.08 amu   
99+
Atomic Volume
12.59 cm3/mol   
40
29.90 cm3/mol   
7
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Potassium
  
Next Element
Neptunium
  
Scandium
  
Valence Electron Potential
170.00 (-eV)   
4
29.00 (-eV)   
99+
Lattice Constant
295.08 pm   
99+
558.84 pm   
9
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
19.10 g/cm3   
17
1.55 g/cm3   
99+
Density When Liquid (at m.p.)
17.30 g/cm3   
7
1.38 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
25.50 (Pa)   
3
Vapor Pressure at 2000 K
0.01 (Pa)   
20
Not Available   
Elasticity properties
  
  
Shear Modulus
111.00 GPa   
10
7.40 GPa   
99+
Bulk Modulus
100.00 GPa   
16
17.00 GPa   
99+
Young's Modulus
208.00 GPa   
10
20.00 GPa   
99+
Poisson Ratio
0.23   
30
0.31   
13
Other Mechanical Properties
Ductile, Malleable   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
18.80   
10
4.58   
99+
Magnetic Ordering
Paramagnetic   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Poor Conductor   
Conductor   
Resistivity
0.28 nΩ·m   
99+
33.60 nΩ·m   
99+
Electrical Conductivity
0.04 106/cm Ω   
37
0.30 106/cm Ω   
6
Electron Affinity
Not Available   
2.37 kJ/mol   
39
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.63 J/(kg K)   
7
Molar Heat Capacity
27.67 J/mol·K   
15
25.93 J/mol·K   
34
Thermal Conductivity
27.50 W/m·K   
40
201.00 W/m·K   
5
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
13.90 µm/(m·K)   
27
22.30 µm/(m·K)   
19
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol   
13
150.00 kJ/mol   
99+
Enthalpy of Fusion
15.48 kJ/mol   
19
8.54 kJ/mol   
99+
Enthalpy of Atomization
489.50 kJ/mol   
14
184.00 kJ/mol   
99+
Standard Molar Entropy
50.20 J/mol.K   
31
41.60 J/mol.K   
36
Summary >>
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