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The mass of a-particle is (a) Less than the sum of masses of two protons and two neutrons (b) Equal to mass of four protons (c) Equal to mass of four neutrons (d) Equal to sum of masses of two protons and two neutron



The mass of a-particle is


(a)    Less than the sum of masses of two protons and two neutrons


(b)    Equal to mass of four protons


(c)    Equal to mass of four neutrons


(d)    Equal to sum of masses of two protons and two neutron


 


Grade:11

1 Answers

Amit Saxena
35 Points
7 years ago

(a)

a-particle = 2He4. It contains 2 p and 2 n.

As some mass is converted into B.E., therefore, mass of a particle is slightly less than the sum of the masses of 2 p and 2 n.

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