(a) Which of the nuclear particles is present in the same fixed number in the atoms of any particular element?(b) What do we call this number which is characteristic of a particular element?


(a) The number of protons present in the atom of any particular element i.e., the atomic number is fixed.

(b) The number that is the characteristic of a particular element is called its atomic number.

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Updated on: 10-Oct-2022

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