Ion charge refers to the electric charge of an ion, which is a particle that has lost or gained one or more electrons and has thus become positively or negatively charged. The ion charge is the amount of positive or negative charge carried by an ion, and it is expressed in terms of the number of electrons lost or gained. For example, a sodium ion (Na+) has a single positive charge because it has lost one electron, while a chloride ion (Cl-) has a single negative charge because it has gained one electron.
The 'ion charge' refers to the electrical charge of an ion, which is an atom or molecule that has gained or lost one or more electrons. Ions can have a positive charge if they have lost electrons, or a negative charge if they have gained electrons. The charge of an ion is written as a superscript next to the element's symbol. For example, a sodium ion with a positive charge (Na+) means it has lost one electron, while a chloride ion with a negative charge (Cl-) means it has gained one electron.
