Hydrogen isotopes (nuclear composition): The nucleus of a hydrogen atom (protium) consists of which particles? Consider the most abundant isotope of hydrogen. Choose the correct option.
IIT JEE
Chemistry
Difficulty: Easy
Choose an option
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A1 proton only
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B1 proton + 2 neutrons
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C1 neutron only
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D1 electron only
Answer
Correct Answer: 1 proton only
Explanation
Concept/ApproachNatural hydrogen is mostly protium (¹H) with a nucleus of one proton only. Deuterium (²H) has 1 p + 1 n; tritium (³H) has 1 p + 2 n.