Question

Atom conssit of electrons , protons and neutrons . If the mass attributed to neutron were halved and that attributed to the electrons were doubled , the atomic mass fo ` ._6C^(12)` would be approximately :
A. Same
B. Doubled
C. Halved
D. Reduced by ` 25%`

Answer 1

Correct Answer - D
No change by douybling mass fo electrons , however by reducing mass fo neutron to half total atomic mass becomes ` 6 + 3` instatad fo ` 6 + 6`. Thus reduced by ` 25 %`.