Question

Which of the follow statements about isotopes is NOT correct?

A- Isotopes are the same element but with different masses
B- Isotopes are often used for dating artifacts and fossils
C- Isotopes have different numbers of electrons
D- Isotopes are often radioactive

Answer 1

Answer: C

Explanation: Edge

Answer 2

Answer: B- Isotopes are often used for dating artifacts and fossils is incorrect.

Explanation: I hope that helped