Please enable JavaScript.
Coggle requires JavaScript to display documents.
Democritus’s Atomic Philosophy He thought all atoms were indavisable and…
Democritus’s Atomic Philosophy
He thought all atoms were indavisable and indestructible.
Although he had some key points he didn’t back it up with evidence
Dalton’s Atomic Theory
By experimenting Dalton made Democritus’s ideas
into a scientific theory.
J.J. Thompson discovered the electron while experimenting with a cathode ray.
Rutherford
Bohr
Schrodinger
Chadwick
Done in 1932 AD
Discovered nuetrons
Dive in 1926 AD
He thought of electrons as waves and deducted you couldn’t find there position.
He improved Rutherford’s model by showing electrons follow a path
Done in 1913 AD
Done in 1909 AD
Discovered that there are protons in the nucleus.
Done in 1898 AD
Showed that the atom is made up of smaller things
Created the first atomic theory
Done in 1803 AD
Made the achievement in 400 BC