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Lawrencium  SEE PERIODIC TABLE
see article  SEE FULL ARTICLE

Atomic Number103
Atomic SymbolLr
Atomic Weight[262 amu]
GroupRare Earth (Actinide Series)
Melting Point1627 °C (2960.6 °F, 1900.15 °K)
Ground State Electron Configuration5f14 6s2 6p6 6d1 6f2
Oxidation State(s)+3
Selected Radioisotopes256Lr, 258Lr, 259Lr
Discovered byGhiorso; Sikkeland; Larsh; Latimer, 1961
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