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JAMB Chemistry 1994 Question 10

Question 10

Atomic Structure

The number of electrons in the valence shell of an element of atomic number 14 is

  1. A.1
  2. B.2
  3. C.3
  4. D.4
Show the answer and explanation

Answer: D (4)

Explanation

Atomic number 14 (silicon) has the arrangement 2, 8, 4, so its outer shell holds 4 electrons.