Atoms And Nuclei Question 190
Question: If m, mn and mp are the masses of $ _{Z}X^{A} $ nucleus, neutron and proton respectively [KCET 2003; CPMT 2003]
Options:
A) $ m<{{(A-Z)}{m{n}}}+Zm_{p} $
B) $ m=(A-Z)m_{n}+Zm_{p} $
C) $ m=(A-Z)m_{p}+Zm_{n} $
D) $ m>(A-Z)m_{n}+Zm_{p} $
Show Answer
Answer:
Correct Answer: A
Solution:
The mass of nucleus formed is always less than the sum of the masses of the constituent protons and neutrons i.e. $ m<(A-Z)m_{n}+zm_{p} $ .
