Two lithium nuclei in lithium vapour at room temperature do not combine to form a carbon nucleus because
A
Carbon nucleus is an unstable particle
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B
It is not energetically favourable particle
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C
Nuclei do not come very close due to Coulombic repulsion
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D
Lithium nucleus is more tightly bound than a carbon nucleus
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Solution
The correct option is D Nuclei do not come very close due to Coulombic repulsion Due to Coulombic repulsion (i.e. nuclei are having same charge) these do not combine at room temperature.