The four atomic species can be represented as follows. Out of these, the two species which can be termed isobars are :
(a) ²⁰¹₆₀X (b) ²⁰⁰₆₁X (c) ²⁰⁰₅₈X (d) ²⁰³₆₀X

Academic Chemistry NCERT Class 9

Correct Answer: (b) (ii) and (iii)

Explanation: (b) 20061X and (c) 20058X are isobars because they have the same mass number but different atomic number.

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Updated on: 10-Oct-2022

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