Zinc vs Osmium
Periodic Table
Symbol
Zn
Os
Group Number
12
6
8
10
Period Number
4
6
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440666
24
7440042
99+
Space Group Name
P63/mmc
P63/mmc
Space Group Number
194.00
5
194.00
5
Facts
Interesting Facts
- Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
- The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Found As a By-product, Found in Minerals, Mining
History
Who Discovered
Indian metallurgists
Smithson Tennant
Discovery
Before 1000 BCE
In 1803
Abundance
Abundance In Universe
3 * 10-5 %
11
3 * 10-7 %
21
Abundance In Sun
~0.0002 %
10
~0.0000002 %
25
Abundance In Meteorites
0.02 %
12
0.00 %
28
Abundance In Earth's Crust
0.01 %
16
0.00 %
99+
Abundance In Oceans
0.00 %
10
Not Available
Abundance In Humans
0.00 %
6
Not Available
Uses
Uses & Benefits
- It is mainly used for Galvanizing other metals.
- It is also used for manufacturing die-casting and it is very essential for automobile industry.
- Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
- It is also used as industrial catalyst to speed up the chemical reaction.
Industrial Uses
Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Medical Uses
Pharmaceutical Industry
NA
Other Uses
Alloys
Alloys
Biological Properties
Toxicity
Highly Toxic
Highly Toxic
Present in Human Body
Yes
No
In Blood
7.00 Blood/mg dm-3
6
Not Available
In Bone
170.00 p.p.m.
6
Not Available
Physical Properties
Melting Point
419.58 °C
99+
3,045.00 °C
3
Boiling Point
907.00 °C
99+
5,027.00 °C
6
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
Silvery Bluish-Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
2.50
14
7.00
3
Brinell Hardness
327.00 MPa
32
3,490.00 MPa
1
Speed of Sound
3,850.00 m/s
18
4,940.00 m/s
11
Optical Properties
Refractive Index
1.00
2
Not Available
Reflectivity
80.00 %
5
Not Available
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
Zn
Os
Isotopes
Known Isotopes
25
14
35
4
Electronegativity
Pauling Electronegativity
1.65
19
2.20
4
Sanderson Electronegativity
2.23
6
Not Available
Allred Rochow Electronegativity
1.66
7
1.52
12
Mulliken-Jaffe Electronegativity
1.65
11
Not Available
Allen Electronegativity
1.59
22
1.65
19
Electropositivity
Pauling Electropositivity
2.35
35
1.80
99+
Ionization Energies
1st Energy Level
906.40 kJ/mol
6
840.00 kJ/mol
12
2nd Energy Level
1,733.30 kJ/mol
27
1,309.80 kJ/mol
99+
3rd Energy Level
3,833.00 kJ/mol
12
1,600.00 kJ/mol
99+
4th Energy Level
5,731.00 kJ/mol
11
Not Available
5th Energy Level
7,970.00 kJ/mol
9
Not Available
6th Energy Level
10,400.00 kJ/mol
9
Not Available
7th Energy level
12,900.00 kJ/mol
9
Not Available
8th Energy Level
16,800.00 kJ/mol
6
Not Available
9th Energy Level
19,600.00 kJ/mol
8
Not Available
10th Energy Level
23,000.00 kJ/mol
10
Not Available
11th Energy Level
26,400.00 kJ/mol
11
Not Available
12th Energy Level
29,990.00 kJ/mol
11
Not Available
13th Energy Level
40,490.00 kJ/mol
5
Not Available
14th Energy Level
43,800.00 kJ/mol
6
Not Available
15th Energy Level
47,300.00 kJ/mol
8
Not Available
16th Energy Level
52,300.00 kJ/mol
9
Not Available
17th Energy Level
55,900.00 kJ/mol
10
Not Available
18th Energy Level
59,700.00 kJ/mol
11
Not Available
19th Energy Level
67,300.00 kJ/mol
10
Not Available
20th Energy Level
171,200.00 kJ/mol
1
Not Available
21st Energy Level
179,100.00 kJ/mol
1
Not Available
Electrochemical Equivalent
1.22 g/amp-hr
99+
1.77 g/amp-hr
38
Electron Work Function
4.33 eV
17
4.83 eV
8
Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes
Chemical Stability, Ionization, Solubility
Atomic Properties
Atomic Number
30
99+
76
40
Electron Configuration
[Ar] 3d10 4s2
[Xe] 4f14 5d6 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
HCP-Crystal-Structure-of-Zinc.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
30
99+
76
39
Number of Neutrons
35
99+
114
25
Number of Electrons
30
99+
76
39
Radius of an Atom
Atomic Radius
134.00 pm
99+
133.80 pm
99+
Covalent Radius
122.00 pm
99+
Not Available
Van der Waals Radius
139.00 pm
99+
216.00 pm
24
Atomic Weight
65.38 amu
99+
190.23 amu
35
Atomic Volume
9.20 cm3/mol
99+
8.49 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
38.90 (-eV)
99+
91.40 (-eV)
12
Lattice Constant
266.49 pm
99+
273.44 pm
99+
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
1.58
14
Mechanical Properties
Density
Density At Room Temperature
7.14 g/cm3
99+
22.59 g/cm3
9
Density When Liquid (at m.p.)
6.57 g/cm3
37
20.00 g/cm3
1
Tensile Strength
Not Available
1,000.00 MPa
4
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
Not Available
0.00 (Pa)
28
Elasticity properties
Shear Modulus
43.00 GPa
18
222.00 GPa
1
Bulk Modulus
70.00 GPa
19
462.00 GPa
1
Young's Modulus
108.00 GPa
19
Not Available
Poisson Ratio
0.25
24
0.25
24
Other Mechanical Properties
NA
Ductile
Magnetic Properties
Magnetic Characteristics
Specific Gravity
6.90
99+
22.57
2
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
59.00 nΩ·m
40
81.20 nΩ·m
35
Electrical Conductivity
0.17 106/cm Ω
12
0.11 106/cm Ω
18
Electron Affinity
0.00 kJ/mol
40
106.10 kJ/mol
9
Thermal Properties
Specific Heat
0.39 J/(kg K)
14
0.13 J/(kg K)
39
Molar Heat Capacity
25.47 J/mol·K
39
24.70 J/mol·K
99+
Thermal Conductivity
116.00 W/m·K
14
87.60 W/m·K
19
Critical Temperature
Not Available
Not Available
Thermal Expansion
30.20 µm/(m·K)
11
5.10 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
7.32 kJ/mol
99+
627.60 kJ/mol
7
Enthalpy of Fusion
7.32 kJ/mol
99+
29.30 kJ/mol
4
Enthalpy of Atomization
129.70 kJ/mol
99+
669.00 kJ/mol
6
Standard Molar Entropy
41.60 J/mol.K
36
32.60 J/mol.K
99+
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