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How many unpaired electrons are present in a lithium atom?.
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How many unpaired electrons are present in a lithium atom?.

User Garethr
by
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1 Answer

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  • Lithium has Z =3

Electronic configuration is given by


\\ \tt\bull\rightarrowtail 1s^22s^1

  • 1s orbital is filled
  • 2s orbital is unfilled

So

  • unpaired electrons=1
User Olenka
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