JAMB Mathematics 2022 Objective — Question 7

Question 7 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

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 electron only

Explanation

Protium (¹H): 1 proton, 0 neutrons, 1 electron. Losing 1 electron leaves only 1 proton (H⁺ ion).

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