Question 633: Atoms & Nuclei

Question

The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of $${}_2^4$$ He is 
(Given helium nucleus mass $$ \approx $$ 4.0015 u.)

Accepted Answer

Mass defect($$\Delta $$m) = 2M
P
+ 2M
N
Ã¢ÂÂ M
He
$$ \Rightarrow $$ $$\Delta $$m = 2 ÃÂ 1.0074 + 2 ÃÂ 1.0087 Ã¢ÂÂ 4.0015
$$ \Rightarrow $$ $$\Delta $$m = 0.0307
Now as per relation, E = $$\Delta $$m ÃÂ 931 MeV
= 0.0307 ÃÂ 931 = 28.4 MeV

Answer

0.0305 J

Answer

0.0305 erg

Answer

28.4 MeV

Answer

0.061 u

Atoms & Nuclei

The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of ${}_2^4 He is (Given helium nucleus mass \approx $ 4.0015 u.)

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