Mg for magnesium
MgS is magnesium sulfide. Periodic table lists elements and any molecules or compounds like the one asked in the question.
Sr stands for strontium on the periodic table of elements.
Iodine.
As=Arsenic
tin
As is the chemical symbol of arsenic.
Argon is what Ar stands for on the Periodic Table of elements.
The name of the compound with this formula is "magnesium sulfide".
In stands for Indium.
It is a list of all the known elements.
Because A doesn't stand for anything.
Magnesium