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Strontium vs Nickel

Strontium
Nickel
Nickel vs Strontium


Periodic Table
Symbol
Sr   
Ni   
Group Number
2   
16
10   
8
Period Number
5   
4   
Block
s block   
d block   
Element Family
Alkaline Earth   
Transition Metal   
CAS Number
7440246   
99+
7440020   
99+
Space Group Name
Fm_ 3m   
Fm_ 3m   
Space Group Number
225.00   
2
225.00   
2
Facts
Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • After iron, Zinc metal the second most abundant element in the earth crust.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
William Cruickshank   
Axel Fredrik Cronstedt   
Discovery
In 1787   
In 1751   
Abundance
  
  
Abundance In Universe
4 * 10-6 %   
14
6 * 10-3 %   
4
Abundance In Sun
~0.000005 %   
15
~0.008 %   
3
Abundance In Meteorites
0.00 %   
15
1.30 %   
3
Abundance In Earth's Crust
0.04 %   
10
0.01 %   
15
Abundance In Oceans
0.00 %   
4
0.00 %   
13
Abundance In Humans
0.00 %   
7
0.00 %   
14
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.
  
  • It has corrosion resistance and hence it is used to plate other metals.
  • Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  
Industrial Uses
Ammunition Industry, Chemical Industry   
Automobile Industry, Electrical Industry, Electronic 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
0.05 Blood/mg dm-3   
17
In Bone
140.00 p.p.m.   
7
0.70 p.p.m.   
18
Physical Properties
Melting Point
769.00 °C   
99+
1,453.00 °C   
31
Boiling Point
1,384.00 °C   
99+
2,732.00 °C   
38
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silver   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
1.50   
18
4.00   
10
Brinell Hardness
Not Available   
667.00 MPa   
18
Vickers Hardness
Not Available   
638.00 MPa   
16
Speed of Sound
Not Available   
4,900.00 m/s   
12
Optical Properties
  
  
Reflectivity
Not Available   
72.00 %   
9
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   
Ni   
Isotopes
  
  
Known Isotopes
27   
12
25   
14
Electronegativity
  
  
Pauling Electronegativity
0.95   
99+
1.91   
10
Sanderson Electronegativity
0.72   
27
1.94   
10
Allred Rochow Electronegativity
0.99   
37
1.75   
3
Mulliken-Jaffe Electronegativity
1.00   
18
Not Available   
Allen Electronegativity
0.96   
40
1.88   
6
Electropositivity
  
  
Pauling Electropositivity
3.05   
7
2.09   
99+
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol   
99+
737.10 kJ/mol   
25
2nd Energy Level
1,064.20 kJ/mol   
99+
1,753.00 kJ/mol   
25
3rd Energy Level
4,138.00 kJ/mol   
10
3,395.00 kJ/mol   
17
4th Energy Level
5,500.00 kJ/mol   
13
5,300.00 kJ/mol   
15
5th Energy Level
6,910.00 kJ/mol   
18
7,339.00 kJ/mol   
15
6th Energy Level
8,760.00 kJ/mol   
18
10,400.00 kJ/mol   
9
7th Energy level
10,230.00 kJ/mol   
19
12,800.00 kJ/mol   
10
8th Energy Level
11,800.00 kJ/mol   
19
15,600.00 kJ/mol   
10
9th Energy Level
15,600.00 kJ/mol   
17
18,600.00 kJ/mol   
10
10th Energy Level
17,100.00 kJ/mol   
19
21,670.00 kJ/mol   
14
11th Energy Level
31,270.00 kJ/mol   
6
30,970.00 kJ/mol   
7
12th Energy Level
Not Available   
34,000.00 kJ/mol   
7
13th Energy Level
Not Available   
37,100.00 kJ/mol   
7
14th Energy Level
Not Available   
41,500.00 kJ/mol   
8
15th Energy Level
Not Available   
44,800.00 kJ/mol   
10
16th Energy Level
Not Available   
48,100.00 kJ/mol   
12
17th Energy Level
Not Available   
55,101.00 kJ/mol   
11
18th Energy Level
Not Available   
58,570.00 kJ/mol   
12
19th Energy Level
Not Available   
148,700.00 kJ/mol   
1
20th Energy Level
Not Available   
159,000.00 kJ/mol   
3
21st Energy Level
Not Available   
169,400.00 kJ/mol   
3
22nd Energy Level
Not Available   
182,700.00 kJ/mol   
2
23rd Energy Level
Not Available   
194,000.00 kJ/mol   
2
Electrochemical Equivalent
1.64 g/amp-hr   
99+
1.10 g/amp-hr   
99+
Electron Work Function
2.59 eV   
99+
5.15 eV   
2
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
38   
99+
28   
99+
Electron Configuration
[Kr] 5s2   
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
FCC-Crystal-Structure-of-Nickel.jpg#100   
Atom
  
  
Number of Protons
38   
99+
28   
99+
Number of Neutrons
50   
99+
31   
99+
Number of Electrons
38   
99+
28   
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
124.00 pm   
99+
Covalent Radius
195.00 pm   
15
124.00 pm   
99+
Van der Waals Radius
249.00 pm   
7
163.00 pm   
40
Atomic Weight
87.62 amu   
99+
58.69 amu   
99+
Atomic Volume
33.70 cm3/mol   
6
6.59 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rubidium
  
Cobalt
  
Next Element
Yttrium
  
Copper
  
Valence Electron Potential
25.70 (-eV)   
99+
42.00 (-eV)   
99+
Lattice Constant
608.49 pm   
6
352.40 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+
8.91 g/cm3   
99+
Density When Liquid (at m.p.)
2.38 g/cm3   
99+
7.81 g/cm3   
29
Tensile Strength
Not Available   
345.00 MPa   
11
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
121.00 (Pa)   
1
0.00 (Pa)   
31
Vapor Pressure at 2000 K
Not Available   
19.50 (Pa)   
6
Elasticity properties
  
  
Shear Modulus
6.03 GPa   
99+
76.00 GPa   
12
Bulk Modulus
Not Available   
180.00 GPa   
9
Young's Modulus
15.70 GPa   
99+
200.00 GPa   
11
Poisson Ratio
0.28   
17
0.31   
13
Other Mechanical Properties
NA   
Ductile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
2.64   
99+
8.90   
33
Magnetic Ordering
Paramagnetic   
Ferromagnetic   
Permeability
Not Available   
0.00 H/m   
2
Susceptibility
Not Available   
600.00   
2
Electrical Properties
  
  
Electrical Property
NA   
Conductor   
Resistivity
132.00 nΩ·m   
24
69.30 nΩ·m   
39
Electrical Conductivity
0.08 106/cm Ω   
26
0.14 106/cm Ω   
13
Electron Affinity
5.03 kJ/mol   
38
112.00 kJ/mol   
6
Thermal Properties
Specific Heat
0.30 J/(kg K)   
18
0.44 J/(kg K)   
13
Molar Heat Capacity
26.40 J/mol·K   
28
26.07 J/mol·K   
31
Thermal Conductivity
35.40 W/m·K   
37
90.90 W/m·K   
18
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
22.50 µm/(m·K)   
18
13.40 µm/(m·K)   
28
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol   
99+
371.80 kJ/mol   
20
Enthalpy of Fusion
9.16 kJ/mol   
38
17.57 kJ/mol   
14
Enthalpy of Atomization
163.20 kJ/mol   
99+
422.60 kJ/mol   
17
Standard Molar Entropy
55.00 J/mol.K   
26
29.90 J/mol.K   
99+
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