How does the number of protons affect the atom?

Protons are the subatomic particles which has positive charge.

The protons define the element.

So for example, every element that has 1 proton is hydrogen.

Hydrogen is a gas.

Every element that has 23 protons would be vanadium.

Vanadium is a chemical element with an atomic number 23.

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explanation:

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."