Chapter 8- Electrons and Energy Levels

chemical bond
is a force that holds two or more atoms together.
valence electron
is an outermost electron of an atom that participates in chemical bonding.
electron dot diagram
a model that represents valence electrons in a atom as dots around the element's chemical symbol.
covalent bond
is a chemical bond formed when two atoms share one or more pairs of valence electrons.
chemical formula
is a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound.
is an atom that is no longer electrically neutral because it has lost or gained valence electrons.
ionic bond
the attraction between positively and negatively charged ions in an ionic compound