Which of the following represent isotopes?
A. ¹⁹F and ³⁵CI
B. A and C
C. ¹⁶O and ¹⁸O
D. ¹⁴N and ¹⁸O
A. ¹⁹F and ³⁵CI
B. A and C
C. ¹⁶O and ¹⁸O
D. ¹⁴N and ¹⁸O