109 Mt [276] Meitnerium Transition metal

Named for Lise Meitner, who explained nuclear fission but was left off the Nobel Prize.

Atomic number
109
Atomic mass
[276] u
Phase
Unknown
Electron configuration
[Rn] 5f¹⁴ 6d⁷ 7s²
Melting point
—
Boiling point
—
Density
37.4 g/cm³
Electronegativity
—
Period / Group
7 / 9
Discovery year
1982
Open the full page

ATOMICLAB