Revered members,
We use spring balance, physical balance, electronic balance to find mass of a substance. But what is the apparatus used to find the mass of an atom? Because, mass of proton and mass of neutron constitute the mass of an atom. But, in nuclear physics, i read the real mass is less than the actual mass(mass of proton and neutron). So how one can find the real mass of an atom.?
We use spring balance, physical balance, electronic balance to find mass of a substance. But what is the apparatus used to find the mass of an atom? Because, mass of proton and mass of neutron constitute the mass of an atom. But, in nuclear physics, i read the real mass is less than the actual mass(mass of proton and neutron). So how one can find the real mass of an atom.?