This is the history of atoms by:Jalen
Democritis was the first person to use the term atom to describe the basic part of nature.
JJ Thompson worked with the glass filled tube also known as as Cathode-Ray tubes.The glass tubes were filled with a gaseous element with low pressure.
Joseph John Thomson
John Dalton came up with the atomic theory but they are one or two parts that we believe are incorrect this day.
Robert A Miliken was the first to measure the charge and mass of an electron.
Robert A. Milliken
Ernest Rutherford and two other scientist Peformed the Gold Foil Experiment.
Niels Bohr proposed the Bohr model of an atom.
Dimitri Ivanenko and Victor Ambartsumian proposed a model of the nucleus of an atom that is composed of positively charged protonsand neutral charged particles (neutrons).
Dmitri Ivanenko & Victor Ambartsumian
James Chadwick proved that the nucleus is definitely composed of protons and neutrons through his experiments with alpha particle radiation.