Answer:
atoms of isotopes of an element have different numbers of neutrons.
Explanation:
isotopes have the same number of protons, but different numbers of neutrons.
I think the answer is D in my opinion
<span>Bonds of reactants are broken and create new bonds to form different products and produces exothermic and endothermic reactions.
You are able to see a chemical reaction occur through a few signs
hope this helps
</span>
The substance would be referred to as a compound substance.
It will be Oxygen . And total 8 protons, 8 electrons and 9 neutrons are present in it.
