
Ion - Wikipedia
Anion (−) and cation (+) indicate the net electric charge on an ion. An ion that has more electrons than protons, giving it a net negative charge, is named an anion, and a minus indication "Anion …
Ion | Definition, Chemistry, Examples, & Facts | Britannica
Nov 18, 2025 · Ion, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions.
What Is an Ion? Definition and Examples - ThoughtCo
Sep 4, 2019 · Learn the definition of an ion, as used in chemistry, chemical engineering, and physics, plus review examples of ions.
「ion」の意味・使い方|よく使うフレーズと例文で学ぼう | 英語 …
Jul 22, 2025 · 「ion」は「イオン」という意味の名詞です。 原子や分子が電子を失ったり得たりして電荷を帯びた状態を指し、正の電荷を帯びたものを陽イオン、負の電荷を帯びたものを …
What Is an Ion? Chemistry Definition - Science Notes and Projects
Nov 20, 2021 · In chemistry, the definition of an ion is an electrically charged atom or molecule. This means the atom or molecule has an unequal number of protons and electrons.
ION Definition & Meaning - Merriam-Webster
The meaning of ION is an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons. How to use ion in a sentence.
英語「ion ()」の意味・使い方・読み方 | Weblio英和辞書
「ion ()」の意味・翻訳・日本語 - イオン|Weblio英和・和英辞書
Ion - Definition and Examples - Biology Online Dictionary
Sep 2, 2022 · Ion definition chemistry (ion meaning): An ion is a charge-carrying atom or a charge-carrying molecule. An ion’s net charge is never zero since it possesses an unequal …
What Is an Ion? Definition, Types, Formation, Properties & Examples
What is an Ion? Ever wondered why salt dissolves in water or how your nerves transmit signals throughout your body? The reason is ions—small charged particles created when atoms gain …
Definition of ion - Chemistry Dictionary
An ion is an atom or molecule that carries an electric charge. Ions are identified by the use of a superscript to show the sign and size of their electric charge.