Assertion :Nuclide $_{13}^{30} A l$ is less stable than $_{20}^{40} C a$ . Reason: Nuclide having odd number of protons and neutrons are generally unstable.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Assertion is correct but Reason is incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is incorrect but Reason is correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Nuclide $_{13}^{30} A l$ is less stable than $_{20}^{40} C a$ .
Reason
Nuclide having odd number of protons and neutrons are generally unstable.
$_{13}^{30} A l$ has 13 protons and $30 - 13 = 17$ neutrons. Both the number of protons and the number of neutrons is odd.
$_{20}^{40} C a$ has 20 protons and $40 - 20 = 20$ neutrons. Both the number of protons and the number of neutrons is even. Also 20 is the magic number. Nuclei having magic number of protons or neutrons are stable.

Suggest Corrections

Similar questions

_{13}^{27}

_{20}^{40}

H_{2}

H e

(1 + \frac{P b}{R T})

H_{2}

H e

Assertion: Be and Al have similar properties.

Reason: $B e^{2 +}$ and $A l^{3 +}$ have nearly the same charge/volume ratios and similar polarising power.

_{13} {A l}^{30}

_{20} {C a}^{40}

Join BYJU'S Learning Program