Fundamental Concepts of Anions

Vocabulary flashcards covering the definition and formation of anions, using chlorine as a primary example from the Labster theory page.

Anion

A negatively charged ion that results from an atom gaining more electrons.

Chlorine ($Cl$) atom

An atom that has an equal number of protons and electrons ($17$) and is uncharged.

Chloride anion ($Cl^-$)

An ion that has gained one electron, resulting in $17$ protons and $18$ electrons for an overall negative charge of $-1$.

Nucleus (Chlorine)

The part of the chlorine atom or ion containing $17$ protons and $18$ neutrons.

Superscript

The notation format used to indicate the charge of an ion.