What is the mass of electrons, protons, neutrons in the unit kg
Mass of an electron = 9.1 X 10-31 Kg
Mass of a proton = 1.673 X 10-27 Kg
Mass of a neutron = 1.675 X 10-27 Kg
What is nuclear energy? State the mass of electrons, protons and neutrons in terms of MeV. ? [2 MARKS]
What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?