nessa142 nessa142
  • 05-01-2017
  • Biology
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what element has 2 energy levels and 1 valance electrons

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Apocrophon
Apocrophon Apocrophon
  • 05-01-2017
Lithium is the third element, has 1 valence electron, and the valence electron is in the 2nd energy level.
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