Question

A magnesium ion has a charge of +2 and an oxygen ion has a charge of –2. What is the chemical formula of the compound made of these ions? Mg2O2 MgO MgO2 Mg2O

Answer 1

A magnesium ion has a charge of +2 and an oxygen ion has a charge of –2. What is the chemical formula of the compound made of these ions?

-- MgO --

Answer 2

MgO

Step-by-step explanation:

A magnesium ion has a charge of +2 and an oxygen ion has a charge of –2.

Molecule made by ions is neutral . In case of Magnesium oxide molecule it is possible only when on magnesium ion and one oxide ion join together to form molecule . The total charge of molecule will be + 2 - 2 = 0 . In this way molecule formed becomes neutral . Hence formula of magnesium oxide is

MgO .