Chemical Bonds

Vocabulary flashcards for Page 1 notes on chemical bonds.

valence electrons

Electrons on the outermost energy level of an atom.

atom

The basic unit of a chemical element.

molecule

A group of atoms bonded together.

compound

A substance made up of atoms of two or more different elements joined by chemical bonds.

mixture

A combination of two or more substances that are not chemically combined.

chemical formula

Shows the elements in the compound and the ratio of atoms.

coefficient

A number in front of a chemical formula in an equation that indicates how many molecules you have.

subscript

A number in a chemical formula that comes after the element symbol and tells the number of atoms of the element in a molecule.

ionic bond

A chemical bond resulting from the attraction between oppositely charged ions.

cation

A positively charged ion.

anion

A negatively charged ion.

covalent bond

A chemical bond formed when two atoms share electrons.