Isabelle,+Keith,+Lauren,+Noah

The atomic theory was composed by 4 great leaders of atom research.

Democritus Dalton media type="custom" key="16074118" align="left" media type="custom" key="16075084"

Thomson media type="custom" key="16075278"

And Rutherford media type="custom" key="16073778" width="99" height="99" align="left" media type="custom" key="16074358"