The valence electrons of \(_{12}Mg\) are in the

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Chemistry WAEC 2018

The valence electrons of \(_{12}Mg\) are in the

  • 3s orbital checkmark
  • 2p\(_{x}\)
  • 2s orbital
  • 1s orbital

The correct answer is: A

Explanation

\(_{12}Mg = 2, 8, 2\)

\(= 1s^{2} 2s^{2} 2p^{6} 3s^{2}\)

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