The inferior alveolar nerve is the larger branch of the posterior division of the mandibular nerve. The inferior alveolar nerve enters the mandibular foramen in the ramus of the mandible (see the image below) to occupy the inferior alveolar canal in the body of the mandible.
The formula for the compound between Lithium and Sulfur is  Li2S because Lithium has a +1 charge while Sulfur has a -2. So for it to be stable, there needs to be two Lithium atoms attached to one Sulfer.
1. Write the formulas for the binary ionic compounds formed between the following elements: a) potassium and iodine: ans d) aluminum and sulfur: ans. b) magnesium and chlorine: ans. c) sodium and sulfur: ans. 2. Name the binary ionic compounds indicated by the following formulas: a) AgCl: ans b) ZnO: ans.