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QUESTION

What is the ionic formula for lithium oxide?

The ionic formula for Lithium Oxide is Li_2O.

Lithium is an Alkali Metal in the first column of . This means that lithium has 1 valence electron it readily gives away in order to seek the stability of the octet. This makes lithium a Li^(+1) cation.?

Oxygen is in the 16th column or p^4 group. Oxygen has 6 . It needs two electrons to make it stable at 8 electrons in its valence shells. This makes oxygen a O^(-2) anion.

Ionic bonds form when the charges between the metal cation and non-metal anion are equal and opposite. This means that two Li^(+2) cations will balance with one O^(-2) anions.

This makes the formula for lithium oxide Li_2O

I hope this is helpful. SMARTERTEACHER