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.
What Is an Ion? Definition and Examples - ThoughtCo
网页2019年9月4日 · 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.
What Is an Ion? Chemistry Definition - Science Notes and Projects
网页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.
3.5: Ions and Ionic Compounds - Chemistry LibreTexts
网页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.
6.1: Ions - Chemistry LibreTexts
网页2022年7月21日 · In this section we will focus on monatomic ions: ions formed from a single atom. Later in this chapter we will look at a second type of ion called a polyatomic ion ; these form when a group of bonded atoms collectively gain a charge.
What is an ion? - ChemTalk
网页Ion Definition. An ion is an atom or molecule with either a positive or negative electrical charge. An ion has a charge because the number of protons does not equal the number of electrons; to find the number of protons and electrons, check out this article.
3.3: Types of ions - Chemistry LibreTexts
网页These ions, which act as discrete units, are electrically charged molecules (a group of bonded atoms with an overall charge). Some of the more important polyatomic ions are listed in Table \(\PageIndex{1}\).
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.
Ion Definition - What is an Ion? (Detailed Explanation with FAQs)
网页What is an Ion? An ion can be defined as a chemical species which holds a positive or negative charge of some magnitude. The term ‘ion’ can be used to refer to atoms or molecules that have non-zero net charges associated with them.
Cations and Anions | Ions - ChemTalk
网页What are ions? In this tutorial, you will learn about the properties, differences, and examples of ions, cations and anions, as well as how to predict them based on their positions on the periodic table.
- 某些结果已被删除一些您可能无法访问的结果已被隐去。显示无法访问的结果
跳至内容