Value of A and Z can be

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Whole number

Negative

Fractional

Zero

answer is D.

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Detailed Solution

Solution:

Concept: Atomic Number is equal to the number of protons in the nucleus of an atom or ion and the number of electrons in a neutral atom, the chemical identity of an atom can be determined by atomic number. The mass number is the total number of protons and neutrons present in the nucleus of an atom which is indicated by A.

The atomic mass of an element in a.m.u. is corrected to the nearest whole number is its mass number

Example: Atomic mass of P=30.956, Mass number is corrected to the nearest whole number i.e., P=31

Hence, the Value of A and Z can be the Whole number

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