Pt Element

Platinum

Periodic Table

Symbol

Group Number

10 8

Period Number

6 2

Block

d block

Element Family

Transition Metal

CAS Number

7440064 73

Space Group Name

Fm_ 3m

Space Group Number

225.00 3

Facts

Interesting Facts

Platinum is the rarest metal from the Precious metal categories..
Commercially Platinum is produced as a byproduct in ores of nickel.

Sources

Mining, Ores of metals, Ores of Minerals

History

Who Discovered

Antonio de Ulloa

Discovery

In 1735

Abundance

Abundance In Universe

0.00 % 20

Abundance In Sun

0.00 % 19

Abundance In Meteorites

0.00 % 25

Abundance In Earth's Crust

0.00 % 49

Abundance In Oceans

Abundance In Humans

0.00 % 24

Uses

Uses & Benefits

Platinum metal is mainly used in jewellery.
Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.

Industrial Uses

Aerospace Industry, Chemical Industry

Medical Uses

Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing

Other Uses

Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues

Biological Properties

Toxicity

Non Toxic

Present in Human Body

In Blood

0.00 Blood/mg dm-3 37

In Bone

0.00 p.p.m. 41

Physical

Melting Point

1,772.00 °C 16

Boiling Point

3,827.00 °C 15

Appearance

Physical State

Solid

Color

Silvery White

Luster

Metallic

Hardness

Mohs Hardness

3.50 12

Brinell Hardness

300.00 MPa 41

Vickers Hardness

400.00 MPa 41

Speed of Sound

2,800.00 m/s 42

Optical Properties

Refractive Index

2.41 6

Reflectivity

73.00 % 10

Allotropes

α Allotropes

β Allotropes

γ Allotropes

Chemical

Chemical Formula

Isotopes

Known Isotopes

35 4

Electronegativity

Pauling Electronegativity

2.28 4

Sanderson Electronegativity

2.28 5

Allred Rochow Electronegativity

1.44 18

Mulliken-Jaffe Electronegativity

2.20 6

Allen Electronegativity

1.72 19

Electropositivity

Pauling Electropositivity

1.72 51

Ionization Energies

1st Energy Level

870.00 kJ/mol 10

2nd Energy Level

1,791.00 kJ/mol 22

3rd Energy Level

2,277.00 kJ/mol 59

4th Energy Level

8,702.00 kJ/mol 6

5th Energy Level

8,702.00 kJ/mol 9

6th Energy Level

8,700.00 kJ/mol 27

7th Energy level

8,700.00 kJ/mol 23

8th Energy Level

8,700.00 kJ/mol 23

9th Energy Level

5,660.00 kJ/mol 60

10th Energy Level

8,700.00 kJ/mol 24

11th Energy Level

8,700.00 kJ/mol 21

12th Energy Level

8,700.00 kJ/mol 41

13th Energy Level

8,700.00 kJ/mol 16

14th Energy Level

870.00 kJ/mol 73

15th Energy Level

87,000.00 kJ/mol 9

16th Energy Level

870.00 kJ/mol 74

17th Energy Level

870.00 kJ/mol 27

18th Energy Level

8,700.00 kJ/mol 16

19th Energy Level

870.00 kJ/mol 25

20th Energy Level

870.00 kJ/mol 15

21st Energy Level

870.00 kJ/mol 38

22nd Energy Level

870.00 kJ/mol 13

23rd Energy Level

870.10 kJ/mol 39

24th Energy Level

870.00 kJ/mol 9

25th Energy Level

870.00 kJ/mol 7

26th Energy Level

870.00 kJ/mol 7

27th Energy Level

870.10 kJ/mol 6

28th Energy Level

870.10 kJ/mol 9

29th Energy Level

870.00 kJ/mol 10

30th Energy Level

870.00 kJ/mol 7

Electrochemical Equivalent

1.82 g/amp-hr 39

Electron Work Function

5.65 eV 4

Other Chemical Properties

Chemical Stability, Anti Corrosion, Ionization

Atomic

Atomic Number

78 38

Electron Configuration

[Xe] 4f¹⁴ 5d⁹ 6s¹

Crystal Structure

Face Centered Cubic (FCC)

Crystal Lattice

FCC-Crystal-Structure-of-Platinum.jpg#100

Atom

Number of Protons

78 38

Number of Neutrons

117 25

Number of Electrons

78 38

Radius of an Atom

Atomic Radius

139.00 pm 41

Covalent Radius

136.00 pm 48

Van der Waals Radius

175.00 pm 43

Atomic Weight

47.87 amu 78

Atomic Volume

9.09 cm3/mol 71

Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

392.42 (-eV) 1

Lattice Constant

392.42 pm 27

Lattice Angles

π/2, π/2, π/2

Lattice C/A Ratio

1.56 44

Mechanical

Density

Density At Room Temperature

21.45 g/cm³ 11

Density When Liquid (at m.p.)

19.77 g/cm3 12

Tensile Strength

125.00 MPa 26

Viscosity

0.00 16

Vapor Pressure

Vapor Pressure at 1000 K

0.00 (Pa) 16

Vapor Pressure at 2000 K

0.07 (Pa) 18

Elasticity properties

Shear Modulus

61.00 GPa 14

Bulk Modulus

230.00 GPa 6

Young's Modulus

168.00 GPa 15

Poisson Ratio

0.38 6

Other Mechanical Properties

Ductile, Malleable

Magnetic

Magnetic Characteristics

Specific Gravity

21.45 13

Magnetic Ordering

Paramagnetic

Permeability

0.00 H/m 14

Susceptibility

0.00 20

Electrical Properties

Electrical Property

Conductor

Resistivity

105.00 nΩ·m 30

Electrical Conductivity

0.10 10⁶/cm Ω 26

Electron Affinity

205.30 kJ/mol 2

Thermal

Specific Heat

0.13 J/(kg K) 40

Molar Heat Capacity

25.86 J/mol·K 44

Thermal Conductivity

71.60 W/m·K 24

Critical Temperature

2,041.00 K 19

Thermal Expansion

8.80 µm/(m·K) 58

Enthalpy

Enthalpy of Vaporization

510.50 kJ/mol 15

Enthalpy of Fusion

19.70 kJ/mol 12

Enthalpy of Atomization

565.00 kJ/mol 15

Standard Molar Entropy

41.60 J/mol.K 50

Summary >>

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