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Li nucleus has three protons and four ne...

Li nucleus has three protons and four neutrons. Mass of Li nucleus is 7.016005 amu. Mass of proton is 1.007277 amu and mass of neutron is 1.008665 amu. Mass defect of lithium nucleus in amu is 

A

0.04048 amu

B

0.04050 amu

C

0.04052 amu

D

0.04055 amu

Text Solution

Verified by Experts

The correct Answer is:
A
Here, `m_(p)=1.007277+4xx1.008665`
`=3.021831+4.03466=7.056491" amu"`
`therefore" Mass defect "=7.056491-7.016005=0.040486amu`
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