Which among the following nuclides is/are likely to be stable ?

_{49} I n^{114}

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_{12} M g^{24}

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_{48} C d^{114}

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_{15} p^{30}

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Solution

The correct options are
A $_{12} M g^{24}$
D $_{48} C d^{114}$
$_{12} M g^{24}$ and $_{48} C d^{114}$ are likely to be stable.
Both have even number of neutrons and protons and n/p ratio of Mg $\frac{12}{12} = 1$ and for Cd $= \frac{66}{48} = 1.375$ .
The neutron to proton ratio for both Mg and Cd falls in the zone of stability.

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Which among the following nuclides is/are likely to be stable ?

The correct options are A 12Mg24 D 48Cd11412Mg24 and 48Cd114 are likely to be stable.Both have even number of neutrons and protons and n/p ratio of Mg 1212=1 and for Cd =6648=1.375.The neutron to proton ratio for both Mg and Cd falls in the zone of stability.