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It is known that an atom contains proton...

It is known that an atom contains protons, neutrons and almost electrons. If the mass of neutron is assumed to half of its original value where as that of proton is assumed to be twice of its original value then the atomic mass of `_(7)^(14)N` will be :-

A

same

B

`25%`more

C

`14.28%`more

D

`28.5%` less

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