https://padlet.com/maurehai0001/emuggw0bc9hy Made with whimsy en-us 2017-11-01 12:53:32 UTC 2025-12-11 13:24:13 UTC hello@padlet.com maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202467292 In 400 B.C. Democritus suggested all matter was made of small particles (atoms)]]> 2017-11-01 12:53:48 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202467292 maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202468030 In 1832 he brought back the idea of all matter being made up of extremely small particles, called atoms, and supported it with evidence.]]> 2017-11-01 12:55:36 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202468030 maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202468729 In 1897 J.J Thomas discovered electrons and their electric charge with Cathode Ray tube experiments. He was the first to prove atoms were made up of smaller pieces]]> 2017-11-01 12:57:13 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202468729 maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202469420 In 1911 he made discoveries about radioactivity and nuclear physics. He stated that atoms are mostly empty space and electrons are randomly scattered around the nucleus.

The model he made was called The Gold Foil Expiriment]]> 2017-11-01 12:58:58 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202469420 maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202471468 In the year of 1913 N. Bohr discovered electrons are confined to certain energy levels (orbitals.) When electrons move from orbital to orbital they either absorb or release energy.]]> 2017-11-01 13:03:24 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202471468 maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202473947 2017-11-01 13:09:08 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202473947 maurehai0001 https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202475659 2017-11-01 13:12:42 UTC https://padlet.com/maurehai0001/emuggw0bc9hy/wish/202475659