Four elements P,Q,R and S have 1,2,3, and 7 electrons in their outermost shells respectively….

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Chemistry JAMB 1992

Four elements P,Q,R and S have 1,2,3, and 7 electrons in their outermost shells respectively. The element which is unlikely to be a metal is?

  • P
  • Q
  • R
  • S checkmark

The correct answer is: D

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