Why is a .(2)^(4)He nucleus more stable ...

Why is a `._(2)^(4)He` nucleus more stable than a `._(3)^(4)Li` nucles ?

The strong nuclear force is larger when the neutron to proton ratio is higher1

The laws of nuclear physics forbid a nucleus from containing more protons than neutrons.

Force other than the strong nuclear force make the lithium nucleus less stable.

None of the above.

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Assertion: Lower value of binding energy per nucleon indicates greater stability. Reason : Binding energy per nucleon of ._(3)Li^(7) is greater than that of ._(2)He^(4) . Hence ._(3)Li^(7) is less stable than ._(2)He^(4) .

If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion.

If Assertion is true but the Reason is false.

If both Assertion and Reason are false.