Platinum

 

• Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78.
• Platinum has an atomic weight of 195.23, which gives it a density almost as great as gold.
• Platinum appears silver-white and firm.
• Platinum has a melting point of 2041.55 K (1768.4°C or 3215.1°F), boiling point of 4098 K (3825°C or 6917°F), specific gravity of 21.45 (20 °C).
• Platinum is often called the “most precious metal” or the “rarest of the precious metals”.