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Strontium vs Vanadium

Strontium
Vanadium
Vanadium vs Strontium


Periodic Table
Symbol
Sr   
V   
Group Number
2   
16
5   
13
Period Number
5   
4   
Block
s block   
d block   
Element Family
Alkaline Earth   
Transition Metal   
CAS Number
7440246   
99+
7440622   
27
Space Group Name
Fm_ 3m   
Im_ 3m   
Space Group Number
225.00   
2
229.00   
1
Facts
Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
  • Vanadium is a highly reactive metal, hence it is not found free in nature.
  • Vanadium can be found in almost 65 different types of minerals.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found As a By-product, Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
William Cruickshank   
Andrés Manuel del Río   
Discovery
In 1787   
In 1801   
Abundance
  
  
Abundance In Universe
4 * 10-6 %   
14
1 * 10-4 %   
10
Abundance In Sun
~0.000005 %   
15
~0.00004 %   
13
Abundance In Meteorites
0.00 %   
15
0.01 %   
14
Abundance In Earth's Crust
0.04 %   
10
0.02 %   
12
Abundance In Oceans
0.00 %   
4
0.00 %   
14
Abundance In Humans
0.00 %   
7
0.00 %   
16
Uses
Uses & Benefits
  • 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.
  
  • Its ally with steel is used very tough and hence it is used in armor plates, axles, piston rods, tools and crankshafts.
  • Its oxide is used as pigments for glass and ceramics.
  
Industrial Uses
Ammunition Industry, Chemical Industry   
Aerospace Industry, Automobile Industry, Chemical Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Non Toxic   
Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.03 Blood/mg dm-3   
19
0.00 Blood/mg dm-3   
36
In Bone
140.00 p.p.m.   
7
0.00 p.p.m.   
31
Physical Properties
Melting Point
769.00 °C   
99+
1,890.00 °C   
13
Boiling Point
1,384.00 °C   
99+
3,380.00 °C   
20
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Blue-Silver Grey   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
1.50   
18
6.70   
4
Brinell Hardness
Not Available   
600.00 MPa   
20
Vickers Hardness
Not Available   
628.00 MPa   
17
Speed of Sound
Not Available   
4,560.00 m/s   
17
Optical Properties
  
  
Reflectivity
Not Available   
61.00 %   
14
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
Sr   
V   
Isotopes
  
  
Known Isotopes
27   
12
22   
17
Electronegativity
  
  
Pauling Electronegativity
0.95   
99+
1.63   
20
Sanderson Electronegativity
0.72   
27
1.39   
17
Allred Rochow Electronegativity
0.99   
37
1.45   
16
Mulliken-Jaffe Electronegativity
1.00   
18
Not Available   
Allen Electronegativity
0.96   
40
1.53   
26
Electropositivity
  
  
Pauling Electropositivity
3.05   
7
2.37   
34
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol   
99+
650.90 kJ/mol   
99+
2nd Energy Level
1,064.20 kJ/mol   
99+
1,414.00 kJ/mol   
99+
3rd Energy Level
4,138.00 kJ/mol   
10
2,830.00 kJ/mol   
35
4th Energy Level
5,500.00 kJ/mol   
13
4,507.00 kJ/mol   
25
5th Energy Level
6,910.00 kJ/mol   
18
6,298.70 kJ/mol   
23
6th Energy Level
8,760.00 kJ/mol   
18
12,363.00 kJ/mol   
5
7th Energy level
10,230.00 kJ/mol   
19
14,530.00 kJ/mol   
5
8th Energy Level
11,800.00 kJ/mol   
19
16,730.00 kJ/mol   
7
9th Energy Level
15,600.00 kJ/mol   
17
19,860.00 kJ/mol   
7
10th Energy Level
17,100.00 kJ/mol   
19
22,240.00 kJ/mol   
12
11th Energy Level
31,270.00 kJ/mol   
6
24,670.00 kJ/mol   
15
12th Energy Level
Not Available   
29,730.00 kJ/mol   
12
13th Energy Level
Not Available   
32,446.00 kJ/mol   
12
14th Energy Level
Not Available   
86,450.00 kJ/mol   
1
15th Energy Level
Not Available   
94,170.00 kJ/mol   
2
16th Energy Level
Not Available   
102,300.00 kJ/mol   
3
17th Energy Level
Not Available   
112,700.00 kJ/mol   
4
18th Energy Level
Not Available   
121,600.00 kJ/mol   
5
19th Energy Level
Not Available   
130,700.00 kJ/mol   
6
20th Energy Level
Not Available   
143,400.00 kJ/mol   
8
21st Energy Level
Not Available   
151,440.00 kJ/mol   
8
Electrochemical Equivalent
1.64 g/amp-hr   
99+
0.38 g/amp-hr   
99+
Electron Work Function
2.59 eV   
99+
4.30 eV   
18
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
38   
99+
23   
99+
Electron Configuration
[Kr] 5s2   
[Ar] 3d3 4s2   
Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
38   
99+
23   
99+
Number of Neutrons
50   
99+
28   
99+
Number of Electrons
38   
99+
23   
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
134.00 pm   
99+
Covalent Radius
195.00 pm   
15
153.00 pm   
33
Van der Waals Radius
249.00 pm   
7
200.00 pm   
28
Atomic Weight
87.62 amu   
99+
50.94 amu   
99+
Atomic Volume
33.70 cm3/mol   
6
8.78 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rubidium
  
Titanium
  
Next Element
Yttrium
  
Chromium
  
Valence Electron Potential
25.70 (-eV)   
99+
120.00 (-eV)   
6
Lattice Constant
608.49 pm   
6
303.00 pm   
99+
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
2.64 g/cm3   
99+
6.00 g/cm3   
99+
Density When Liquid (at m.p.)
2.38 g/cm3   
99+
5.50 g/cm3   
99+
Tensile Strength
Not Available   
800.00 MPa   
6
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
121.00 (Pa)   
1
Not Available   
Vapor Pressure at 2000 K
Not Available   
0.23 (Pa)   
16
Elasticity properties
  
  
Shear Modulus
6.03 GPa   
99+
47.00 GPa   
16
Bulk Modulus
Not Available   
160.00 GPa   
11
Young's Modulus
15.70 GPa   
99+
128.00 GPa   
15
Poisson Ratio
0.28   
17
0.37   
7
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
2.64   
99+
5.96   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
NA   
Superconductor   
Resistivity
132.00 nΩ·m   
24
197.00 nΩ·m   
19
Electrical Conductivity
0.08 106/cm Ω   
26
0.05 106/cm Ω   
35
Electron Affinity
5.03 kJ/mol   
38
50.60 kJ/mol   
20
Thermal Properties
Specific Heat
0.30 J/(kg K)   
18
0.49 J/(kg K)   
10
Molar Heat Capacity
26.40 J/mol·K   
28
24.89 J/mol·K   
99+
Thermal Conductivity
35.40 W/m·K   
37
30.70 W/m·K   
39
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
22.50 µm/(m·K)   
18
8.40 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol   
99+
458.60 kJ/mol   
14
Enthalpy of Fusion
9.16 kJ/mol   
38
17.57 kJ/mol   
14
Enthalpy of Atomization
163.20 kJ/mol   
99+
514.60 kJ/mol   
13
Standard Molar Entropy
55.00 J/mol.K   
26
28.90 J/mol.K   
99+
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