Periodic Table of the Elements: Lawrencium

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Periodic Table of the Elements: Lawrencium
Atomic Number:103
Atomic Symbol:Lr
 Lawrenciumlawrencium,
artificially produced radioactive chemical element; symbol Lr; at. no. 103; mass number of most stable isotope 262; m.p. about 1,627°C;; b.p. and sp. gr. unknown; valence +3.
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Atomic Weight:(262)
Electron Configuration:2 · 8 · 18 32 · 32 9 · 2
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