Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two times respectively to their actual masses, then the atomic mass of \[_{6}{{C}^{12}}\]
a) Will remain approximately the same
b) Will become approximately two times
c) Will remain approximately half
d) Will be reduced by 25%

Answer: d
Explanation: No change by doubling mass of electrons however by reducing mass of neutron to half total atomic mass becomes \[6+3\] instead of \[6+6\] . Thus, reduced by 25%.