https://padlet.com/4213181/cpsffpgtpcx2jwb5 Faraz Rabie Period 0 en-us 2023-09-26 16:20:11 UTC 2023-09-28 02:00:29 UTC hello@padlet.com https://padlet.net/icons/png/269b.png 4213181 https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2721574281 Atoms are uniformly packed spheres of positive matter with negatively charged electrons.

Discovered the electron]]> 2023-09-26 16:20:11 UTC https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2721574281 4213181 https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723854016 Showed that common substances always broke down into the same elements. Substances are just combinations of different elements in the same proportions.]]> 2023-09-27 23:14:37 UTC https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723854016 4213181 https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723855994 Shot small positively charged  alpha particles at gold foil. Some passed through but some bounced off the nucleus.

Concluded that atoms were comprised of mostly empty space with just a few electrons while most of the mass was concentrated in the nucleus.

]]> 2023-09-27 23:18:16 UTC https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723855994 4213181 https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723856764 Said that electrons orbit the nucleus at fixed energies and distances, able to jump from one level to another, but not in the space between.]]> 2023-09-27 23:19:45 UTC https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723856764 4213181 https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723856873 Determined that it was impossible to determine the precise speed and location of electrons as they moved around the atom.]]> 2023-09-27 23:19:57 UTC https://padlet.com/4213181/cpsffpgtpcx2jwb5/wish/2723856873