Mar 3, 2020 · The chemical formula of a compound is always written with the cation first, followed by the anion. For example, Na is the cation and Cl is the anion in NaCl (table salt).

Anions What is an anion? An anion is an ion that has gained one or more electrons, giving a net negative charge. Because electrons are added to form an anion, the anion of an atom is …

Oct 3, 2024 · Anions are negatively charged ions that form when atoms gain electrons, and a list of anions includes common ones like chloride, sulfate, and nitrate.

Certain nonmetals generally form anions and noble gases such as helium or argon do not form ions. In general, ions are chemically more reactive than neutral atoms and molecules and can …

For example, F A is the fluoride ion, while O A 2 is the oxide ion. As is the case with cations, the charge on the anion is indicated by a superscript following the symbol.

Jan 24, 2024 · One example is hydrogen, which may gain (H -) or lose (H +) an electron, forming hydride compounds such as ZnH 2 (where it is an anion) and hydron compounds such as H 2 …

Nov 21, 2023 · What is an example of an anion? An example of an anion is Cl-. A Cl- atom is a chlorine atom that has gained an electron to have a full outer shell and thus has a negative …

For instance, chloride (Cl –) is an example of an anion; it forms when a chlorine atom gains an electron. Another example is sulfate (SO 42-), which is a polyatomic anion consisting of sulfur …

Oct 18, 2022 · By convention, the anion portion of a chemical name or formula follows the cation. For example, in sodium chloride (NaCl), the cation is the sodium ion (Na +) and the anion is …

Anions can be classified into simple anions (monatomic) and polyatomic anions (composed of multiple atoms). Common simple anions include hydroxide (OH⁻), cyanide (CN⁻), and sulfide …