363808
Read the Assertion and Reason carefully to mark the correct options given below: Assertion : For an element generally \(N \geq Z\) \((N = \) number of neutrons, \(Z=\) atomic number). Reason : Neutrons experience attractive nuclear force.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
For an element, it is not always true that number of neutrons \((N)\) are greater than or equal to atomic number \((Z)\).For example, in hydrogen atom, there is no neutron but it has one proton.Therefore, atomic number of hydrogen atom is greater than number of neutrons \(i.\,e.,\,\,\,Z > N\) for hydrogen atom.The force between neutrons in the nucleus is attractive. So, correct option is (4).