somebody please explain how to determine the relative abundance of isotopes.im having trouble understaning the rule :)​

Somebody Please Explain How To Determine The Relative Abundance Of Isotopesim Having Trouble Understaning The Rule class=

Answer :

Answer:

isotopes have the SAME number of protonsbut DIFFERENT number of neutrons . to find out the neutrons you need to subtract atomic number from the mass "m-a=n"