1. Which of the following pairs of atoms are isotopes?

a) K-39 and K-40

c) C-12 and N-14

b) F-10 and Ne-10

d) H-2 and He-2

Question

Yasmin Morrow

Chemistry

26 January, 22:13

1. Which of the following pairs of atoms are isotopes?

a) K-39 and K-40

c) C-12 and N-14

b) F-10 and Ne-10

d) H-2 and He-2

+5

Answers (1)

Know the Answer?

Eliezer Fuentes · Answer 1

Isotopes of an element are atoms of the same element with same number of protons but different number of neutrons. Only choice (b) has 2 atoms of X with 6 protons and 8 and 6 neutrons respectively.

Explanation:

b) is the answer

1. Which of the following pairs of atoms are isotopes?a) K-39 and K-40c) C-12 and N-14b) F-10 and Ne-10d) H-2 and He-2

1. Which of the following pairs of atoms are isotopes?

a) K-39 and K-40

c) C-12 and N-14

b) F-10 and Ne-10

d) H-2 and He-2