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.
Formula. Name. Formula. Name. Formula. 1) chlorine monoxide. ClO. 11) sulfur dioxide . SO 2. 21) dinitrogen pentasulfide . N 2 S 5. 2) oxygen difluoride . OF 2. 12) bromine pentafluoride . BrF 5. 22) carbon monoxide . CO. 3) boron phosphide . BP. 13) disulfur dichloride . S 2 Cl 2. 23) sulfur trioxide . SO 3. 4) dinitrogen monoxide . N 2 O. 14) boron trifluoride . BF 3. 24) dinitrogen trioxide . N 2 O 3. 5) nitrogen trifluoride