Answer
a. the name of this compound is Magnesium Chloride
b. the name of this compound is Potassium Phosphide
c. the name of this compund is Lithium Sulfide
d. the name of this compound is Cesium Fluoride
e. the name of this compound is Magnesium Oxide
f. the name of this compound is Strontium Bromide
Work Step by Step
to name an Ionic compound you write the metal ion first, followed by the first syllable of the nonmetal with "ide".
a.$MgCl_2$ the metal comes first (Magnesium) then, the first syllable of the nonmetal (Chlor) is "ide" (Chloride) - Magnesium Chloride
You can find this at page 192 topic 6.3 "Naming and Writing Ionic Formulas"
