JAMB Chemistry 2021 Objective — Question 25

Question 25 of 41 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

The three isotopes of hydrogen are ¹H, ²H and ³H. The heaviest isotope of hydrogen is

A. ¹H (protium)
B. ²H (deuterium)
C. ³H (tritium)Correct
D. All are equally heavy

Explanation

Tritium (³H): proton = 1, neutron = 2, mass number = 3. Deuterium (²H): mass number = 2. Protium (¹H): mass number = 1. Tritium is the heaviest.

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