General Information
- Name: Platinum (Pt)
- Atomic #: 78
- Avg. Atomic Mass: 195 g/mol
- Chemical Group: Transition Metals
- Location on PT: Period 6, Group 10, Block D
- Protons: 78
- Neutrons: 117
- Electrons: 78
- Electron Configuration: [Xe] 4f14 5d9 6s1
- Atomic Radius: 139 pm
- Ionization Energy: 870 kJ/mol, 1,791 kJ/mol, 2,800 kJ/mol
- Electronegativity: 2.28
- Physical Properties: silver/gray-white, ductile, lustrous, malleable metal
- Boiling Point: 3,825 C
- Melting Point: 1,768 C
- Valence Electrons: 2
- Ions: 190 Pt, 192 Pt, 194 Pt, 195 Pt, 196 Pt, 198 Pt