The subatomic particle that makes each of these isotopes the same is the _. each of these isotopes has _ protons.

These isotopes have the same atomic symbol (carbon) because each contains the same number of protons.

There are protons in each of these atoms.

Explanation:

There are two major types of subatomic particles in an atomic nucleus: protons and neutrons.

The number of protons in the nucleus of an atom determines the chemical property of that atom. Two atoms belong to the same chemical element if and only if they each contain the same number of protons.

In this example, all three isotopes shown belong to carbon. Hence, each atom of these three isotopes would include the same number of protons. (The three isotopes differ because each contains a different number of neutrons.)

The atomic number of an element is the number of protons in each atom of this element.

Look up the atomic number of carbon on a modern periodic table.

The atomic number of carbon is . That would be the number of protons in each atom of the three isotopes of carbon listed in this question.

yes it is balanced

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons