Question

if the mas of protone is halved mass of neutron is doubled , calculate % change in mass of ca40?

Answer 1

Answer:

20 protons and 20 neutrons

now 10 protons and 40 neutrons

initial mass = 40

final mass = 50

% chnge = 50-40/40×100= 10×100/40= 1000/40

25%