VOCAB

Atom- the smallest particle of matter, contains protons, neutrons, and electrons. The protons and neutrons are contained in the nucleus while the electrons revolve around the nucleus at immense speeds

 

Element- a substance that cannot be decomposed into simpler substances by chemical means

 

Periodic- recurring at regular intervals

 

Cylindrical- having the shape of a cylinder, especially of a circular cylinder.

 

Tabular- organized as a table or list