SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The only element with no neutrons in its nucleus.
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Oxygen
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Helium
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Hydrogen
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Lithium
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Explanation:
Detailed explanation-1: -Hence, the correct option is A i.e. Hydrogen.
Detailed explanation-2: -Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. The isotopes of hydrogen have, respectively, mass numbers of one, two, and three. Their nuclear symbols are therefore 1H, 2H, and 3H.
Detailed explanation-3: -Hydrogen (Protium-1H1) is the only element that does not contain any neutrons in its nucleus.
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