Forming an ionic bond, Li and F become Li + and F − ions. An ion (/ ˈ aɪ. ɒ n,-ən /) [1] is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convention. The net charge ...

2025年3月2日 · 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. Ions migrate under the influence of an electrical field and are the conductors of electric current in electrolytic cells.

ION翻译：离子, （加在动词后构成名词表示“行为，状态”）。 了解更多。

2019年9月4日 · Learn the definition of an ion, as used in chemistry, chemical engineering, and physics, plus review examples of ions.

2021年11月20日 · 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. Neutrons carry no net electrical charge, so they don’t affect ions directly. In chemical reactions, ions form when atoms or molecules gain or lose valence electrons.

Predict which forms an anion, which forms a cation, and the charges of each ion. Write the symbol for each ion and name them.

Ions form when atoms lose or gain electrons. Ionic compounds have positive ions and negative ions. Ionic formulas balance the total positive and negative charges.

阴离子（Anion）是指原子由于外界作用得到一个或几个电子，使其最外层电子数达到稳定结构的离子。 阴离子是带负电荷的离子，核电荷数=质子数<核外电子数，所带负电荷数等于原子得到的电子数。 原子失去或获得电子后所形成的带电粒子叫离子，例如钠离子Na +。 带电的原子团亦称“离子”，如硫酸根离子。 某些分子在特殊情况下，亦可形成离子。 [1] 带一个或多个负电荷的离子称为“阴离子”。 很多阴离子是原子由于自身的吸引作用从外界吸引到一个或几个电子使其最外层电 …

“An ion is a small electrically charged particle. Ions are single charged atoms (simple ions) or small charged “molecules” (polyatomic ions).” Simple ions include Na +, Ca 2+, and Cl –. Polyatomic ions include (NH 4) +, (CO 3) 2-, and OH –. Unlike protons and neutrons, electrons can be easily removed and added to an atom.

When two oppositely charged ions form an ionic bond with each other, the resulting type of compound is commonly referred to as an ionic compound. If an ion is made up of only one type of atom (each holding some net charge, positive or negative), it can be referred to as an atomic ion or a monoatomic ion.