Periodic Table of the Elements: Ununseptium

Periodic Table of the Elements: Ununseptium
Atomic Number:117
Atomic Symbol:Uus
 Ununseptiumununseptium
, artificially produced radioactive chemical element; symbol Uus; at. no. 117; mass number of most stable isotope 294; m.p., b.p., sp. gr., and valence unknown.
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Atomic Weight:(294)
Electron Configuration:2 · 8 · 18 32 · 32 18 · 7
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