WAEC Chemistry 2012 Objective — Question 9
Question 9 of 50 from the West African Examinations Council (WAEC) Chemistry 2012 Objective paper, with the correct answer and a full explanation.
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A hydrogen atom which has lost an electron contains
- A. one proton onlyCorrect
- B. one neutron only
- C. one proton and one neutron
- D. one proton, one electron and one neutron
Explanation
A hydrogen atom has one proton and one electron (no neutron in the common isotope). If it loses its electron, it is left with one proton only.
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