Question

20. Isobars are atoms with same number of
(a) protons
(b) neutron
(c) electrons
(d) proton +neutron
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Answer 1

Answer:

(d) protons + neutrons

Answer 2

Answer: protons + neutrons

Explanation:we know that isobars are the atoms of different elements having same atomic mass and atomic mass of the element is equal to the sum of number of protons + number of neutrons so isobars will have same number of protons + neutrons.