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Mendelevium Md
Where is mendelevium used--or where does it impact your everyday life?
Mendelevium is a synthetic element--made in very small quantities
Mendelevium, Md
Atomic mass: 258 Atomic number: 101
Where in the Periodic Table: actinoid
Melting point: unknown
Boiling point: 827oC (1521 oF)
Density: unknown
Most stable isotope: unknown
15 isotopes known
Electron configuration: [Rn] 5f13 7s2 2, 8, 18, 32, 31, 8, 2
Source: LANL.gov
Researcher: Maria H
Mendelevium is named after Dmitri Mendeleev. It is the ninth transuranium element of the actinide series discovered. It was first identified by Ghiorso, Harvey, Choppin, Thompson, and Seaborg in early in 1955 during the bombardment of the isotope 253Es with helium ions in the Berkeley 60-inch cyclotron. The isotope produced was 256Md, which has a half-life of 76 min. This first identification was notable in that 256Md was synthesized on a one-atom-at-a-time basis. Source: LANL.gov
