The model below shows two different elements and their associated electrons.
image 90534266949145c297785026a1fa4118
Based on the model shown, what is is the formula for a compound containing only Li and O?
A
Li2O
B
LiO
C
LiO2
D
Li2O2
The model shows two Li (Lithium) atoms and one O (Oxygen) atom. Since Lithium has a charge of +1 and Oxygen has a charge of -2, we need two Lithium atoms to balance out the charge of one Oxygen atom. Therefore, the correct formula for the compound is Li2O.
So the answer is A) Li2O.