›› Physical and chemical properties of Fermium

Atomic Number:100
Element Symbol:Fm
Element Name:Fermium
Atomic Weight:257
Group Name:Actinoid
Period Number:7 (actinoid)
Block:f-block
Ground State Configuration:[Rn] 5f12 7s2
Ground State Level:3H6
Standard State:Artificially prepared
First Ionization Energy:627
Pauling Electronegativity:1.3
Allred Rochow Electronegativity:1.2
Melting Point:1527
Most Common Oxidation Numbers:3
Color:Unknown, but probably metallic and silvery white or grey in appearance
Classification:Metallic
Discovered By:Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA.
Discovered At:USA
Discovered When:1952
Origin Of Name:Named after Enrico Fermi

Calculate the molecular weight of Fermium or molecular weight Fm.

Also see the full list of chemical elements and atomic weights.