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    Neutrons are present in the nucleus of all atoms, except-
    Question

    Neutrons are present in the nucleus of all atoms, except-

    A.

    Hydrogen

    B.

    Carbon

    C.

    Oxygen

    D.

    Nitrogen

    Correct option is A


    Out of the given options, only the hydrogen atom typically does not have a neutron in its nucleus. Most elements have at least one neutron in their nucleus for stability, but the simplest element, hydrogen, can exist in a stable form with just one proton and one electron (no neutrons). There are, however, isotopes of hydrogen with neutrons, but the most common form (Hydrogen-1) does not.

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