Md

Mendelevium

Actinide

Mendelevium is a synthetic element named after Dmitri Mendeleev, creator of the periodic table. Only tiny amounts have ever been produced.

Key Facts

Atomic Number
101
Atomic Weight
258
State
Solid
Half-life
51.5 days (Md-258)
Discovered
1955
Albert Ghiorso, Glenn T. Seaborg, Gregory R. Choppin, Bernard G. Harvey, Stanley G. Thompson

Overview

Description

Mendelevium is a synthetic element named after Dmitri Mendeleev, creator of the periodic table. Only tiny amounts have ever been produced.

Discovery

Mendelevium was discovered in 1955 by Albert Ghiorso, Glenn T. Seaborg, Gregory R. Choppin, Bernard G. Harvey, Stanley G. Thompson.