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Uranium Strontium Comparison

Uranium
Strontium
Strontium Uranium comparison


Periodic Table
Symbol
U  
Sr  
Group Number
0  
18
2  
16
Period Number
7  
5  
Block
f block  
s block  
Element Family
Actinide  
Alkaline Earth  
CAS Number
7440611  
28
7440246  
99+
Space Group Name
Cmcm  
Fm_ 3m  
Space Group Number
63.00  
13
225.00  
3
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
Sources
Earth's crust, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
-  
William Cruickshank  
Discovery
In 1789  
In 1787  
Abundance
  
  
Abundance In Universe
0.00 %  
30
0.00 %  
15
Abundance In Sun
0.00 %  
26
0.00 %  
15
Abundance In Meteorites
0.00 %  
99+
0.00 %  
15
Abundance In Earth's Crust
0.00 %  
36
0.04 %  
10
Abundance In Oceans
0.00 %  
11
0.00 %  
4
Abundance In Humans
0.00 %  
24
0.00 %  
8
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.
  
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
-  
-  
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
0.00 Blood/mg dm-3  
37
0.03 Blood/mg dm-3  
19
In Bone
1.20 p.p.m.  
19
140.00 p.p.m.  
7
Physical
Melting Point
1,132.00 °C  
39
769.00 °C  
99+
Boiling Point
3,818.00 °C  
16
1,384.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
1.50  
19
Brinell Hardness
2,350.00 MPa  
2
110.00 MPa  
99+
Vickers Hardness
1,960.00 MPa  
6
15.00 MPa  
99+
Speed of Sound
3,155.00 m/s  
36
4,170.00 m/s  
23
Optical Properties
  
  
Refractive Index
1.38  
40
1.43  
39
Reflectivity
80.00 %  
7
65.00 %  
18
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
U  
Sr  
Isotopes
  
  
Known Isotopes
25  
14
27  
12
Electronegativity
  
  
Pauling Electronegativity
1.38  
29
0.95  
99+
Sanderson Electronegativity
1.38  
22
0.72  
99+
Allred Rochow Electronegativity
1.22  
27
0.99  
38
Mulliken-Jaffe Electronegativity
1.38  
29
1.00  
99+
Allen Electronegativity
1.38  
36
0.96  
99+
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
3.05  
7
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
2nd Energy Level
1,420.00 kJ/mol  
99+
1,064.20 kJ/mol  
99+
3rd Energy Level
1,900.00 kJ/mol  
99+
4,138.00 kJ/mol  
10
4th Energy Level
3,145.00 kJ/mol  
99+
5,500.00 kJ/mol  
22
5th Energy Level
5,976.00 kJ/mol  
99+
6,910.00 kJ/mol  
30
6th Energy Level
5,976.00 kJ/mol  
99+
8,760.00 kJ/mol  
26
7th Energy level
5,970.00 kJ/mol  
99+
10,230.00 kJ/mol  
19
8th Energy Level
5,976.00 kJ/mol  
99+
11,800.00 kJ/mol  
19
9th Energy Level
5,976.00 kJ/mol  
99+
15,600.00 kJ/mol  
17
10th Energy Level
5,976.00 kJ/mol  
99+
17,100.00 kJ/mol  
19
11th Energy Level
5,976.00 kJ/mol  
99+
31,270.00 kJ/mol  
6
12th Energy Level
5,970.00 kJ/mol  
99+
5,490.00 kJ/mol  
99+
13th Energy Level
5,970.00 kJ/mol  
99+
5,490.00 kJ/mol  
99+
14th Energy Level
5,970.00 kJ/mol  
34
5,490.00 kJ/mol  
99+
15th Energy Level
59,700.00 kJ/mol  
99+
54,900.00 kJ/mol  
99+
16th Energy Level
59,700.00 kJ/mol  
35
54,900.00 kJ/mol  
99+
17th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
18th Energy Level
5,976.00 kJ/mol  
99+
5,490.00 kJ/mol  
99+
19th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
20th Energy Level
597.00 kJ/mol  
99+
549.00 kJ/mol  
99+
21st Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
22nd Energy Level
597.00 kJ/mol  
99+
549.00 kJ/mol  
99+
23rd Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
24th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
25th Energy Level
597.60 kJ/mol  
99+
549.00 kJ/mol  
99+
26th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
27th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
28th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
29th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
30th Energy Level
597.60 kJ/mol  
99+
549.50 kJ/mol  
99+
Electrochemical Equivalent
1.48 g/amp-hr  
99+
1.64 g/amp-hr  
99+
Electron Work Function
3.63 eV  
99+
2.59 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
92  
26
38  
99+
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Kr] 5s2  
Crystal Structure
Orthorhombic (ORTH)  
Face Centered Cubic (FCC)  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
FCC-Crystal-Structure-of-Strontium.jpg#100  
Atom
  
  
Number of Protons
92  
26
38  
99+
Number of Neutrons
146  
14
50  
99+
Number of Electrons
92  
26
38  
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
31
215.00 pm  
6
Covalent Radius
196.00 pm  
14
195.00 pm  
15
Van der Waals Radius
186.00 pm  
40
249.00 pm  
11
Atomic Weight
238.03 amu  
21
87.62 amu  
99+
Atomic Volume
12.59 cm3/mol  
99+
33.70 cm3/mol  
9
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Rubidium
  
Next Element
Neptunium
  
Yttrium
  
Valence Electron Potential
170.00 (-eV)  
4
25.70 (-eV)  
99+
Lattice Constant
295.08 pm  
99+
608.49 pm  
6
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.02  
99+
1.57  
40
Mechanical
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
2.64 g/cm3  
99+
Density When Liquid (at m.p.)
17.30 g/cm3  
17
2.38 g/cm3  
99+
Tensile Strength
100.00 MPa  
28
170.00 MPa  
21
Viscosity
0.00  
21
0.00  
2
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
121.00 (Pa)  
1
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.00 (Pa)  
38
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
6.03 GPa  
99+
Bulk Modulus
100.00 GPa  
16
11.00 GPa  
99+
Young's Modulus
208.00 GPa  
11
15.70 GPa  
99+
Poisson Ratio
0.23  
30
0.28  
17
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
18.80  
19
2.64  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
35
Electrical Properties
  
  
Electrical Property
Poor Conductor  
-  
Resistivity
0.28 nΩ·m  
99+
132.00 nΩ·m  
24
Electrical Conductivity
0.04 106/cm Ω  
99+
0.08 106/cm Ω  
31
Electron Affinity
50.60 kJ/mol  
25
5.03 kJ/mol  
99+
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.30 J/(kg K)  
18
Molar Heat Capacity
27.67 J/mol·K  
18
26.40 J/mol·K  
36
Thermal Conductivity
27.50 W/m·K  
99+
35.40 W/m·K  
38
Critical Temperature
1,405.00 K  
99+
1,050.00 K  
99+
Thermal Expansion
13.90 µm/(m·K)  
30
22.50 µm/(m·K)  
19
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
18
150.00 kJ/mol  
99+
Enthalpy of Fusion
15.48 kJ/mol  
19
9.16 kJ/mol  
99+
Enthalpy of Atomization
489.50 kJ/mol  
18
163.20 kJ/mol  
99+
Standard Molar Entropy
50.20 J/mol.K  
99+
55.00 J/mol.K  
34
Summary >>
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Actinide Series

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