Platinum

Element symbols:Pt
Atomic number: 78
Atomic mass:195.08
# of protons: 78
# of neutrons: 117
# of electrons: 78
# of energy levels: 6
# of valance electrons: 2
Melting point: 1,768
Boiling point: 3,825

Discovered in year: 1735
Discovered by: Antonia De Ulloa

While mining, Spanish conquistadors found small white metal nuggets along with gold and for that reason called it a Spanish word "platina" which means "little silver"

FACTS

• Belongs to transition metal
• Metal
• Solid
• Inactive metal
• Dissolves in very hot alkali