← Back to the table

Current data, viewed at Yearly resolution. Personal members see monthly resolution →
100 Actinide
Fm

Fermium

RIS 0.000
Velocity +0.000
Rank#102
Co-citedEs
Physical properties
Category Actinide
Block f-block
State Solid
Config [Rn] 5f12 7s2
Electronegativity 1.3
Density 9.7 g/cm³
Melting 1800.0 K
Ionization 627.0 kJ/mol
Oxidation +2, +3
Discovered 1952 · Albert Ghiorso and others
Fermium's history

Research intensity over time

Research communities behind this literature

Groups of papers that cite each other densely, with the share of Fermium's tracked research in each.