Question

Atoms- 1 2 3 4

Protons- 8 10 9 8
Neutrons- 10 9 9 11
Electrons- 8 10 9 8

Which two are isotopes of one another?

Answer 1

The ones with 8 protons

Step-by-step explanation:

Since there are two of them with 8 protons, we can assume they are the same element. The first 8 proton element has 10 neutrons while the second has 11. This makes them isotopes of one another