UNIT 1.1 Vocabulary

Anything that has mass and takes up space

• Matter

• Compound

• Element

• Molecule

A pure substance that cannot be broken down into any other substances

• Matter

• Compound

• Element

• Molecule

A substance made up of any two or more atoms (may be from the same or from different elements)

• Matter

• Compound

• Element

• Molecule

A substance made up of any two or more atoms from different element

• Matter

• Compound

• Element

• Molecule

The smallest whole unit of an element

• atom

• molecule

• proton

• neutron

Subatomic particle that carries a positive charge

• proton

• neutron

• electron

Subatomic particle that carries a negative charge

• proton

• neutron

• electron

Subatomic particle that carries no charge

• proton

• neutron

• electron

The number of protons in an atom is its

• atomic number

• atomic mass

• chemical formula

The number of protons + neutrons in an atom is its

• atomic number

• atomic mass

• chemical formula