Answer:
Formula of magnesium oxide is MgO and formula of strontium oxide is SrO
Explanation:
Ca, Mg and Sr are same group bivalent metals.
Oxygen is a bivalent element
In general, formula of a compound made of a cation [tex]M^{x+}[/tex] and an anion [tex]A^{y-}[/tex] is [tex]M_{y}A_{x}[/tex] for [tex]x\neq y[/tex]
When x = y, formula of the compound becomes MA
As both these metals and oxygen are bivalent therefore formula of magnesium oxide is MgO and formula of strontium oxide is SrO.
