magnesium (mg) aluminum (al) silicon (si) sulfur (s)
The answer you may be looking for perhaps is Histone.
they all have cells and dna
It can be from Chlorine and Bromine. These two chemicals created are highly popular and deplete the ozone layer at an uncomfortable. This is also known as ODS. (ozone-depleting substances) Basically all that happens is these chemicals strip atoms apart. Thus depleting the ozone layer.
I hope this is the answer you were looking for and that it helps!! :)