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The mass of α-particle is
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- 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 neutron
Correct Option: A
α-particle = 2He4, It contains 2 p and 2 n. As some mass is converted into B.E., therefore, mass of α particle is slightly less than the sum of the masses of 2 p and 2 n.
