Question 600: Atoms & Nuclei

Question

The mass of a $${}_3^7Li$$ Li nucleus is 0.042 u less than the sum of the masses of all its nucleons. The binding energy per nucleon of $${}_3^7Li$$ nucleus is nearly

Accepted Answer

For $${}_3^7Li$$ nucleus,
Mass defect, $$\Delta $$M = 0.042 u
$$ 	herefore $$ 1 u = 931.5 MeV/c
2
$$ 	herefore $$ $$\Delta $$M = 0.042 ÃÂ 931.5 MeV/c
2
= 39.1 MeV/c
2
Number of nucleons in $${}_3^7Li$$ is 7.
Binding energy per nucleon,
E
bn
= $${{39.1} \over 7}$$ = 5.6 MeV

Answer

46 MeV

Answer

5.6 MeV

Answer

3.9 MeV

Answer

23 MeV

Atoms & Nuclei

The mass of a ${}_3^7Li Li nucleus is 0.042 u less than the sum of the masses of all its nucleons. The binding energy per nucleon of {}_3^7Li$ nucleus is nearly

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