Fermium

Actinide

Symbol: Fm

Atomic Number: 100

Standard State: Solid

Atomic Mass: 257.0951

Electron Configuration: [Rn] 5f12 7s2

Electronegativity: 1.3

Atomic Radius:

Ionization Energy: 6.5

Melting Point: 1800

Boiling Point:

Density:

Year Discovered: 1952