# Chemistry

posted by
**Husy**
.

Which of the following represents a pair of isotopes?

Atomic Number Mass Number

a. I 7 16

II 8 16

b. I 17 34

II 18 36

c. I 17 35

II 17 37

d. I 7 14

II 8 16

e. I 17 37

II 18 37