Chemistry Concepts

Front

Atom

Back

The smallest unit of matter that retains the properties of an element.

Front

Element

Back

A pure substance made of only one kind of atom.

Front

Isotope

Back

Atoms of the same element with different numbers of neutrons.

Front

Ion

Back

An atom or molecule that has gained or lost electrons, giving it a charge.

Front

Compound

Back

A substance made of two or more different elements chemically bonded together.

Front

Ionic Compound

Back

A compound formed when atoms transfer electrons and become ions, held together by electrostatic forces.

Front

Covalent Bond

Back

A chemical bond formed when atoms share electrons.

Front

Chemical Bonds

Back

Forces that hold atoms together in compounds.

Front

Van der Waals Forces

Back

Weak attractions between molecules due to temporary shifts in electron density.

Front

Electron

Back

A negatively charged particle that orbits the nucleus of an atom.