Rest mass of neutron, and rest mass of proton.
If you mean the symbol, mn0 and mp0.
If you mean the values, to 4 significant figures 1.673*10^-27kg for a proton, 1.675*10^-27kg for a neutron.
The sum of protons and neutrons in an atom is called mass number.
The sum of protons and neutrons in an atom is called mass number.
The number protons in an atom is called the atomic number (it is this number that tells us which element the atom is). The number of neutrons in an atom can change, but the term for the amount of neutrons is called an isotope. The number of protons and neutrons added together is called the atomic mass.
The atomic mass
atomic mass : )
Number protons + number neutrons is called the mass number or the atomic mass.
Mass number is about the neutrons and protons. The total of neutrons and protons.
Mass number
mass number = protons + nuetrons
The mass number is the average atomic mass of all the isotopes that are found in nature.
Mass number!:)
mass number = protons + nuetrons