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Question
Which of the following pairs are isobars ?
(i) `""_26^58"A"`, `""_28^58"B"`
(ii) `""_35^79"X"`, `""_35^80"Y"`
Give reasons for your choice.
Short/Brief Note
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Solution
`""_26^58"A"` and `""_28^58"B"` are isobars because they have same number of nucleons i.e. their mass numbers are same but atomic number is different.
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