Question

¹⁷P³⁵ , ¹⁶Q³² , ¹⁷R³⁷ , ¹⁵S³¹ are four elements. Identify the pairs of elememts which are isotopes. ​

Answer 1

Answer:

17P35 and 17R37

Explanation:

because isotopes have same atomic number but different mass number.

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