Answer:
isotopes
Explanation:
The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. Different isotopes of the same element have different masses.
Answer:
first bring craft paper then make 12345678 910 then make lines how many box you want to make then then draw write down their your answer bye-bye
Option numberrrr C I THINK
