The introduction of a neutron into the nuclear composition of an atom would lead to a change in:

its atomic mass

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its atomic number

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the chemical nature of the atom

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number of the electron also

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Solution

The correct option is A its atomic mass
The introduction of a neutron into the nuclear composition of an atom would lead to a change in its atomic mass.
However, its atomic number, the chemical nature of the atom and the number of the electron s will remain unchanged as they are related to the number of protons and are independent of the number of neutrons.
Note: The atomic mass is equal to the sum of the number of protons and the number of neutrons. Chemical properties depends on number of electrons which are equal to number of protons in neutral atom. They are also equal to atomic number.

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