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  • Atomic Structure
  • Which of the following atoms has the least valency?
Multiple choice

Which of the following atoms has the least valency?

  1. Oxygen

  2. Magnesium

  3. Aluminium

  4. Chlorine
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chlorine has 7 electrons in its valence shell and the valency is 1.  Both magnesium and oxygen have valency 2. The valency of aluminium is 3.

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