Two atoms are said to be isobars if.
Question:

Two atoms are said to be isobars if.

(i) they have the same atomic number but a different mass number.

(ii) they have the same number of electrons but a different number of neutrons.

(iii) they have the same number of neutrons but a different number of electrons.

(iv) the sum of the number of protons and neutrons is the same but the number of

protons is different.

Solution:

Option (iv) the sum of the number of protons and neutrons is the same but the number of

protons is different is the answer.

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