01 About Platinum
More rare than gold. Used in catalytic converters (destroys toxic car exhaust). The international kilogram prototype was a platinum-iridium cylinder.
02 Physical Properties
State at room temperature๐ชจ Solid
Melting point1768.3 ยฐC
Boiling point3825 ยฐC
Density21.45 g/cmยณ
Atomic mass195.084 u
Electron configuration2,8,18,32,17,1
Period / GroupPeriod 6, Group 10
BlockD-block
03 Discovery
Platinum was discovered in 1735 by de Ulloa.