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Lawrencium
SEE PERIODIC TABLE
SEE FULL ARTICLE
Atomic Number
103
Atomic
Symbol
Lr
Atomic Weight
[262 amu]
Group
Rare Earth (Actinide Series)
Melting Point
1627 °C (2960.6 °F, 1900.15 °K)
Ground State
Electron Configuration
5f
14
6s
2
6p
6
6d
1
6f
2
Oxidation State(s)
+3
Selected
Radioisotopes
256
Lr,
258
Lr,
259
Lr
Discovered by
Ghiorso; Sikkeland; Larsh; Latimer, 1961
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