-1
The ionic charge of chloride ions is -1.
Lead (IV) chloride is an ionic compound. Lead (IV) cation has a 4+ charge, while chloride ion has a 1- charge, so they combine to form an ionic compound with a formula of PbCl4.
Copper chloride is an ionic bond, where copper has a positive charge and chloride has a negative charge, resulting in them being attracted to each other and forming a bond.
Chloride is always minus one (-1).
The molecule is neutral.
The ionic name for aluminum chloride is aluminum (III) chloride. The Roman numeral III indicates that aluminum has a +3 charge in this compound.
The name for AlCl3 in the ionic form is aluminum chloride. It typically forms ionic compounds with a 3+ charge on the aluminum cation and a 1- charge on the chloride anion.
The ionic compound formed between Chloride (Cl-) and Mg2+ is MgCl2. In this compound, the magnesium ion with a 2+ charge combines with two chloride ions with a 1- charge to achieve a neutral overall charge.
Magnesium chloride is an neutral ionic compound. In neutral ionic compounds, the positive charge of the cations must balance out the negative charge of the anions. In the case of magnesium chloride, magnesium is the cation with an ionic charge of +2 and chlorine is the anion with an ionic charge (each) of -1. Since two chlorine anions together have a charge of -2 total, they balance out the one magnesium cation with a charge of +2.
Calcium chloride (CaCl2) is an ionic compound, where calcium (Ca) forms a cation (+2 charge) and chloride (Cl) forms an anion (-1 charge). The electrostatic attraction between the positively charged calcium ion and negatively charged chloride ions results in an ionic bond.
Magnesium chloride is an neutral ionic compound. In neutral ionic compounds, the positive charge of the cations must balance out the negative charge of the anions. In the case of magnesium chloride, magnesium is the cation with an ionic charge of +2 and chlorine is the anion with an ionic charge (each) of -1. Since two chlorine anions together have a charge of -2 total, they balance out the one magnesium cation with a charge of +2.
The formula for the ionic compound formed between chloride and Al3+ would be AlCl3 (aluminum chloride). Aluminum has a 3+ charge, and chloride has a 1- charge, so it takes three chloride ions to balance the charge of one aluminum ion in the compound.