Question

Identify the pair of isotopes from the following:; 168X, 167X, 178X,

Answer 1

Answer:

16 8 x and 17 8 x are the isotopes

Explanation:

8 - atomic number

16,17 - mass number

since isotopes are elements which have same mass no. and different atomic no.

hope it will help

MARK IT AS THE BRAINLIEST ANSWER...