Cations and Anions: Definitions, Examples, and Differences
网页2020年3月3日 · Cations and anions are the two types of ions. Ions have an imbalance of electrical charge, meaning they contain different numbers of protons and electrons. Cation have a positive electrical charge and have more protons than electrons. Anions have a negative electrical charge and have more electrons than protons.
7.4: Anions - Chemistry LibreTexts
网页2022年9月20日 · Anions are negative ions that are formed when a nonmetal atom gains one or more electrons. Anions are so named because they are attracted to the anode (positive field) in an electrical field. Atoms typically gain electrons so that they will have the electron configuration of a noble gas.
Anion Chemistry Glossary Definition and Examples - ThoughtCo
网页Updated on January 06, 2020. An anion is an ionic species having a negative charge. The chemical species may be a single atom or a group of atoms. An anion is attracted to the anode in electrolysis. Anions are typically larger than cations (positively charged ions) because they have extra electrons around them.
ANION中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页noun [ C ] chemistry specialized uk / ˈæn.aɪ.ən / us / ˈæn.aɪ.ən / Add to word list. an ion with a negative electrical charge. 阴离子. (anion在剑桥英语-中文（简体）词典的翻译 © …
Common Anions List and Formulas - Science Notes and Projects
网页2022年10月18日 · This table lists common anions by their names, with the anion formula and charge. Anions are grouped according to whether they are simple (one element or monatomic ions ), oxoanions (containing oxygen), derived from organic acids, or other types of …
Ion | Definition, Chemistry, Examples, & Facts | Britannica
网页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.
3.5: Ions and Ionic Compounds - Chemistry LibreTexts
网页Species with overall positive charges are termed cations, while species with overall negative charges are called anions. Remember that ions are formed only when electrons move from one atom to another; a proton never moves from one atom to another. Compounds formed from positive and negative ions are ionic compounds.
4.7: Ions - Losing and Gaining Electrons - Chemistry LibreTexts
网页Anions. Some atoms have nearly eight electrons in their valence shell and can gain additional valence electrons until they have an octet. When these atoms gain electrons, they acquire a negative charge because they now possess more electrons than protons. Negatively charged ions are called anions.
What Is an Ion? Definition and Examples - ThoughtCo
网页2019年9月4日 · Anions are ions that carry a net negative charge. In anions, there are more electrons than protons. The number of neutrons is not a factor in whether an atom, functional group, or molecule is an anion. Like cations, the charge on an anion is indicated using a superscript after a chemical formula.
Ion - Wikipedia
网页An ion (/ ˈaɪ.ɒn, - 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.
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