Question:
Identify the pairs which are not of isotopes?
(i) 6X12, 6Y13
(ii) 17X35, 6Y37
(iii) 6X14, 7Y14
(iv) 4X8, 5Y8
Solution:
Option (iii) 6X14, 7Y14 and (iv) 4X8, 5Y8 are the answers.
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