Ion - Wikipedia Electron transfer from a neutral lithium (Li) atom on the left to a neutral fluorine (F) atom on the right would give a Li + and F − ions An ion ( ˈaɪ ɒn, - ən ) [1] is an atom or molecule with a net electrical charge
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
What Is an Ion? Definition and Examples - ThoughtCo Ions are atoms or molecules that gain or lose electrons and carry an electrical charge Cations are positively charged ions, while anions are negatively charged ions Ions can be single atoms or groups of atoms forming monatomic or polyatomic ions
“An ion is a small electrically charged particle. Ions are . . . 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
3. 3: Types of ions - Chemistry LibreTexts During the formation of some compounds, atoms gain or lose electrons, and form electrically charged particles called ions (Figure 3 3 1 3 3 1) Figure 3 3 1 3 3 1: (a) A sodium atom (Na) has equal numbers of protons and electrons (11) and is uncharged