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Hydrogen only has one proton. A Hydrogen-3 atom contains one proton and 2 nuetrons. This is because atoms of a certain element can vary in the amount of nuetrons. The're called isotopes.

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14y ago
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11y ago

H-3 has two neutrons. The isotope is known as tritium

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AnswerBot

5mo ago

There are 2 neutrons in a tritium nucleus (H-3).

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Q: How many neutrons in h-3?
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