Details : Item 215

Alkali metals
Alkaline earth metal
Transition metals I
Transition metals II
Transition metals III
Transition metals IV
Post-transition metal
Diatomic non-metal
Noble gas

Famille : Transition metals II/3
Symbol: W, phase: solid, grayish white, lustrous. Also
known as Wolfram, it is the heaviest element to be
essential to any living organism. Considered a conflict mineral
due to the unethical mining practices observed in DRC.
Atomic number74
Atomic weight183.84
Melting point (K)3695
Boiling point (K)6203
Speed of sound (m/s)4620
Discovery1781 (C. W. Scheele)