History of the Atom by Samuel Goude https://padlet.com/goudesamueld/4qs3123hncy8 Timeline of the atom's history. Who, when, and where the atom was discovered. en-us 2018-10-08 13:11:02 UTC 2026-01-07 04:24:31 UTC hello@padlet.com Democritus goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290283297 When: Sometime between 460 B.C. and 370 B.C.
Where: Abdera
Theory: Everything is composed of atoms which are physically invisible, but not geometrically]]> 2018-10-08 13:21:16 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290283297 Dimitri Mendeleev goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290287267 When: 1869
Where: Saint Petersburg
Theory: He constructed the first periodic table.]]> 2018-10-08 13:28:41 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290287267 Ernest Rutherford goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290287980 When: 1911
Where: New Zealand
Theory: Atoms have a small charged nucleus]]> 2018-10-08 13:30:06 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290287980 John Dalton goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288418 When: 1803
Where: Manchester
Theory: Chart of atomic weight]]> 2018-10-08 13:30:51 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288418 JJ Thompson goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288649 When: 1897
Where: UK
Theory: The electron theory. Negative charge.]]> 2018-10-08 13:31:19 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288649 Niels Bohr goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288811 When: 1913
Where: Copenhagen
Theory: Energy is transferred only in certain well defined quantities.]]> 2018-10-08 13:31:41 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288811 Erwin Schrodinger goudesamueld https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288968 When: 1926
Where: Vienna
Theory: Wave Equation]]> 2018-10-08 13:32:03 UTC https://padlet.com/goudesamueld/4qs3123hncy8/wish/290288968