-
Democritus came up with his own atomic theory. He found out that all matter consists of invisible particles called atom, and that atoms are indestructible.
-
-
John Dalton discovered how to combine two different atoms and make a new one.
-
Was the very first to discover and tell the world about the electron.
-
Suggested than an atom was a positive sphere with electrons all around it.
-
Found that an electron was actually using negative force.
-
He discovered the atomic nucleus while he was studying atoms.
-
Is the man that discoved the neutron.