Unit 4 - Period Table Vocab

A substance that cannot be broken down into simpler substances

• Compound

• Molecule

• Mixture

• Element

A combination of two or more substances that are not chemically combined

• compound

• mixture

• molecule

• element

A one or two letter representation of an element

• Atomic Number

• Atomic Mass

• Chemical Symbol

• Group

A subatomic particle that has no charge and that is found in the nucleus of an atom

• Proton

• Neutron

• Electron

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

• Proton

• Neutron

• Electron

Smallest particle of an element

• Proton

• Neutron

• Electron

• Atom

A subatomic particle that has a negative charge and found orbiting the nucleus

• Proton

• Neutron

• Electron

Two or more atoms held together by chemical bonds

• Compound

• Molecule

• Element

• Mixture

Tags

NGSS.MS-PS1-1

Vertical column in the periodic table

• Period

• Family

• Atomic Number

• Atomic Mass

non-metals, group 18, the most non-reactive elements

• Alkali Metals

• Noble Gasses

• Halogens

• Alkaline Earth Metals