Basic Information

Name: Platinum 
Symbol: Pt 
Atomic Number: 78 
Atomic Mass: 195.078 amu 
Melting Point: 1772.0 °C (2045.15 K, 3221.6 °F) 
Boiling Point: 3827.0 °C (4100.15 K, 6920.6 °F) 
Number of Protons/Electrons: 78 
Number of Neutrons: 117 
Classification: Transition Metal 
Crystal Structure: Cubic 
Density @ 293 K: 21.45 g/cm3 
Color: silverish
Date of Discovery: 1735 
Discoverer: Julius Scaliger 
Name Origin: From the Spanish word platina (little silver) 
Uses: jewelry, containers, catalyst 
Obtained From: platinum ores