Assertion : The sum of protons and neutrons i | vedclass

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(D) Isobars are defined as atoms of different elements that have the same mass number $(A)$ but different atomic numbers $(Z)$.The mass number $(A)$ i

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If the Assertion is incorrect but the Reason is correct.

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(D) Isobars are defined as atoms of different elements that have the same mass number $(A)$ but different atomic numbers $(Z)$.The mass number $(A)$ is defined as the sum of the number of protons and neutrons in the nucleus.Since isobars have the same mass number,the sum of protons and neutrons is the same for them,not different.Therefore,the Assertion is incorrect,and the Reason is correct.

Assertion : The sum of protons and neutrons is always different in isobars.
Reason : Isobars are atoms of different elements having same mass number but different atomic number.

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Assertion : The sum of protons and neutrons is always different in isobars.Reason : Isobars are atoms of different elements having same mass number but different atomic number.