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The mass of an α - particle is |
Less than the sum of masses of two protons and two neutrons Equal to mass of four protons Equal to mass of four neutrons Equal to sum of masses of two protons and two neutrons |
Less than the sum of masses of two protons and two neutrons |
This is due to mass defect because a part of mass is used in keeping the neutrons and protons bound as α - particle. |
