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Mendelevium  SEE PERIODIC TABLE
see article  SEE FULL ARTICLE

Atomic Number101
Atomic SymbolMd
Atomic Weight[258 amu]
GroupRare Earth (Actinide Series)
Melting Point827 °C (1520.6 °F, 1100.15 °K)
First Ionization Potential6.58 eV
Ground State Electron Configuration5f13 6s2 6p6 6f2
Oxidation State(s)+2, +3
Selected Radioisotopes256Md, 258Md
Discovered byGhiorso; Harvey; Choppin; Thompson; Seaborg, 1955
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