Unit 3- Vocab Check

Front

Matter made of one type of atom

Back

Element

Front

Smallest matter piece with element properties; made of 3 particle types.

Back

Atom

Front

Subatomic particle with a positive charge

Back

Proton

Front

Subatomic particle with a negative charge

Back

Electron

Front

Subatomic particle with no charge

Back

Neutron

Front

Center of the atom containing protons and neutrons.

Back

Nucleus

Front

Part of the atom showing electrons in energy levels around a nucleus

Back

Electron Cloud

Front

System with a dense nucleus and orbiting electrons, like the Solar System.

Back

Bohr Model

Front

Composed mostly of protons and neutrons in the nucleus

Back

Atomic Mass

Front

Number of protons in an atom identifies the element.

Back

Atomic Number