Periodic Table of the Elements: Lutetium

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Periodic Table of the Elements: Lutetium
Atomic Number:71
Atomic Symbol:Lu
 Lutetiumlutetium,
formerly lutecium
, metallic chemical element; symbol Lu; atomic number 71; at. wt. 174.9668; m.p. about 1,663°C;; b.p. about 3,395°C;; sp. gr. 9.835 at 25°C;; valence +3. Lutetium is a silver-white metal that is relatively stable in air.
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Atomic Weight:174.9668
Electron Configuration:2 · 8 · 18 32 · 9 · 2
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