Search results
- Dictionary-ion/(ə)n/
suffix
- 1. forming nouns denoting verbal action: "communion"
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.
Ions are atoms WITH a charge. The charge can be positive or negative. In other words, the atom gains or loses an electron. The proton never changes (if the proton changes, it is a different element)!
Sep 4, 2019 · An ion is defined as an atom or molecule that has gained or lost one or more of its valence electrons, giving it a net positive or negative electrical charge. In other words, there is an imbalance in the number of protons (positively charged particles) and electrons (negatively charged particles) in a chemical species.
Meaning of ion in English. ion. noun [ C ] physics, chemistry specialized uk / ˈaɪ.ɒn / us / ˈaɪ.ɑːn / Add to word list. an atom or small group of atoms that has an electrical charge because it has added or lost one or more electrons. See also. SMART Vocabulary: related words and phrases. Physics: atoms, molecules & sub-atomic particles. acceptor.
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. Neutrons carry no net electrical charge, so they don’t affect ions directly.
In contrast, ions are atoms or assemblies of atoms that have a net electrical charge. Ions that contain fewer electrons than protons have a net positive charge and are called cations. Conversely, ions that contain more electrons than protons have a net negative charge and are called anions.
IPA guide. An ion is an atom or particle with a positive or negative electrical charge. Think of an ion as having a plus or minus sign. Ion is a word you are most likely to encounter in a physics or chemistry text. But you don’t have to be a chemist or physicist to understand the concept.
