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JAMB Chemistry 1994 Question 14

Question 14

Atomic Structure

Which of the following atoms represents deuterium?
(No. of protons, No. of neutrons, No. of electrons)

  1. A.1, 0, 0
  2. B.1, 0, 1
  3. C.1, 1, 1
  4. D.1, 2, 1
Show the answer and explanation

Answer: C (1, 1, 1)

Explanation

Deuterium is the hydrogen isotope with mass number 2. It has 1 proton, 1 neutron and, as a neutral atom, 1 electron.