Atoms and Periodic Table

Front

What is the atomic number?

Back

Number of Protons

Front

Number of protons and neutrons

Back

Atomic Mass

Front

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

Back

Proton

Front

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

Back

Neutron

Front

A subatomic particle that has a negative charge

Back

Electron

Front

Area around the nucleus of an atom where the atom's electrons are most likely to be found

Back

Electron Cloud

Front

Electrons on the outermost energy level of an atom

Back

Valence Electrons

Front

Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements (1834-1907)

Back

Dmitri Mendeleev

Front

Vertical columns on the periodic table

Back

groups/families

Front

Horizontal rows on the periodic table

Back

Periods