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JAMB Chemistry 2013 Question 11

Question 11

Atomic Structure

The bond formed between two elements with electron configurations 1s2 2s2 2p6 3s2 and 1s2 2s2 2p4 is

  1. A.metallic.
  2. B.covalent.
  3. C.dative.
  4. D.ionic.
Show the answer and explanation

Answer: D (ionic.)

Explanation

The first is magnesium (gives 2 electrons) and the second oxygen (takes 2), so they form ionic MgO.