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JAMB Chemistry 1983 Question 5

Question 5

Atomic Structure

If an element has the electronic configuration 1s2 2s2 2p6 3s2 3p4, it is

  1. A.a metal
  2. B.an alkaline earth metal
  3. C.an s-block element
  4. D.a p-block element
  5. E.a transition element
Show the answer and explanation

Answer: D (a p-block element)

Explanation

The last electrons go into a p subshell (3p4), so it is a p-block element (sulphur).