Platinum - ASCII Periodic Table of the Elements

ASCII PERIODIC TABLE OF THE ELEMENTS

  Pt

Relative atomic mass: 195.084 +- 0.009

English: Platinum
French: Platine
Croatian: Platina
German: Platin
Italian: Platino
Spanish: Platino

Atomic number: 78
Group numbers: 10
Period: 6
Standard state (20 ^oC): solid

Discovery: 1557 Julius Caesar Scaliger (IT)

Platinum was discovered by Julius Caesar Scaliger (IT) in 1557. The origin of the name comes from the Spanish word 'platina' meaning 'silver'. It is a rare, very heavy, soft, silvery-white metal that resists oxygen, water, corrosion, and acid attacks except aqua regia. Platinum is produced from deposits of native, or elemental. It is used in jewellery, to make crucible and special containers and as a catalyst. Platinum is used with cobalt to produce very strong magnets, also to make standard weights and measures.

Electronic configuration: [Xe] 4f¹⁴ 5d⁹ 6s¹
Formal oxidation number: +2 +4
Atomic radius: 137.3 pm

Electronegativities: 2.2
Thermal conductivity: 71.6 W/(m K)
Electrical resistivity (20 ^oC): 10.6 microOhm cm

Melting point: 1768.4 ^oC
Boiling point: 3825 ^oC

Heat of fusion: 19.7 kJ/mol
Heat of vaporization: 469 kJ/mol
Heat of atomization: 564.42 kJ/mol