Ion - Wikipedia Ions consisting of only a single atom are termed monatomic ions, atomic ions or simple ions, while ions consisting of two or more atoms are termed polyatomic ions or molecular ions
Ion | Definition, Chemistry, Examples, Facts | Britannica 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? Chemistry Definition - Science Notes and Projects In chemical reactions, ions form when atoms or molecules gain or lose valence electrons Only nuclear reactions change the number of protons in a chemical species The two types of ions are anions and cations An anion has a net negative electrical charge It contains more electrons than protons
3. 3: Types of ions - Chemistry LibreTexts Positively charged ions are called cations, and negatively charged ions are called anions Ions can be either monatomic (containing only one atom) or polyatomic (containing more than one atom)
1. 13: Ions: Atoms That Have Lost or Gained Electrons Ions, by contrast, do not have the same numbers of protons and electrons Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus
“An ion is a small electrically charged particle. Ions are single . . . 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
What is an Ion? (with picture) - AllTheScience There are three types -- anions, which are negatively charged, cations, which are positively charged, and radicals, or radical ions, which are highly reactive due to having a large amount of free electrons
Ion - Properties, Symbols and Formation | CK-12 Foundation Ions are atoms that have a positive or negative charge because they have unequal numbers of protons and electrons If atoms lose electrons, they become positive ions, or cations If atoms gain electrons, they become negative ions, or anions Consider the example of fluorine (see Figure below)