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

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?
  • A.
    P
  • B.
    Q
  • C.
    R
  • D.
    S
Correct Answer: Option D
Explanation
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