Vocabulary Unit #1

Front

Mass

Back

The measure of the amount of matter in an object

Front

Matter

Back

Anything that has mass and takes up space

Front

Atom

Back

The smallest unit of an element that retains the properties of that atom

Front

Electrons

Back

Negatively charged particles outside the nucleus of an atom

Front

Protons

Back

Positively charged particles in the nucleus of an atom

Front

Neutrons

Back

Neutrally charged particles in the nucleus of an atom (no charge)

Front

Nucleus

Back

The center of an atom that has most of its mass (protons and neutrons combine here)

Front

Molecule

Back

More than one atom joined together

Front

Element

Back

A pure substance that cannot be broken down into any simpler substances through chemical reactions

Front

Periodic table

Back

A chart with all the elements