* Lithium (Li) is in Group 1 of the periodic table, meaning it has a +1 charge when it forms an ion (Li⁺).
* Chlorine (Cl) is in Group 17 of the periodic table, meaning it has a -1 charge when it forms an ion (Cl⁻).
To form a neutral compound, the charges must balance. Therefore, one Li⁺ ion combines with one Cl⁻ ion, resulting in the formula LiCl.
