Ch 2 Pre-test

The basic unit of matter

The center of an atom, which contains the protons and neutrons

Positively charged sub-atomic particle that is found in the nucleus of an atom

Sub-atomic particle that has no charge and is found in the nucleus of an atom

Negatively charged particle; located in the space surrounding the nucleus

Pure substance that consists entirely of one type of atom

Substance formed by the chemical combination of two or more elements in definite proportions

Chemical bond formed when one or more electrons are transferred from one atom to another

Type of bond between atoms in which the electrons are shared

Weak attraction between a hydrogen atom and another atom