-
Democritus described that matter is made from tiny building blocks
-
He found that atoms of same substances are the same and that mixtures of the diferent atoms make up compounds.
-
Dmitry Mendeleyev and Lothar Meyer discovered that elements had different types of atoms. This classification was the begining of the periodic table.
-
Sir Joseph Jon Thompson and others did experiments with electricity, proved that atoms existed.
-
Ernest Rutheford and Niels Bohr designed a model that included protons and nucleus.
-
in 2016 4 new types of atoms were found. These were the last discoveries of new atoms
A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.