Atomic Models and Discoveries

Front

Discovered the electron and created an atomic model that looked like a chocolate chip cookie.

Back

Thomson

Front

Neutron

Back

A neutrally charged particle found in the nucleus of an atom.

Front

Electron

Back

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

Front

Nucleus

Back

The central part of an atom containing protons and neutrons.

Front

The number of protons in an atom

Back

atomic number

Front

Electron cloud 2 can hold

Back

8 electrons.

Front

Particles found in the nucleus of the atom

Back

Protons and neutrons.

Front

Part of the atom with a negative charge

Back

Electron

Front

Positively charged particle in the nucleus

Back

Proton

Front

Smallest unit of an element

Back

Atom