Atomic Scientists Period 1 by Aminda Davis https://padlet.com/asdavis1/7yisizhrlvo en-us 2017-10-13 15:45:04 UTC 2025-12-26 07:29:44 UTC hello@padlet.com Thomson 1757631 https://padlet.com/asdavis1/7yisizhrlvo/wish/198192279 He was the first to discover electrons. He ran test and he found out that gas gives off a negative charge. (These are known as electrons) He demonstrated this by using plum pudding.]]> 2017-10-18 12:46:49 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198192279 Ernest Rutherford https://padlet.com/asdavis1/7yisizhrlvo/wish/198192320 2017-10-18 12:46:54 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198192320 Rutherford 1499797 https://padlet.com/asdavis1/7yisizhrlvo/wish/198192328 Rutherford was testing out Thompson's theory, and shot positively charged particles at a golden sheet. Most passed through, but some deflected or bounced back. He concluded that there was a large, dense, positively charged nucleus surrounded by empty space, with the electrons surrounding the empty space.]]> 2017-10-18 12:46:55 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198192328 Thompson- Stephanie Friedman 1503429 https://padlet.com/asdavis1/7yisizhrlvo/wish/198192552 Discovered there are smaller particles inside the atom, so the atom can be divided into even smaller parts. He proposed that there are negatively charged particles inside every atom known as electrons. He created the Plum Pudding Model.
 
 ]]> 2017-10-18 12:47:23 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198192552 Rutherford 1533523 https://padlet.com/asdavis1/7yisizhrlvo/wish/198193012 Rutherford's  model showed a tiny, dense, positively charged core called a nucleus. - @jakehongg ]]> 2017-10-18 12:48:23 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198193012 Rutherford 1742023 https://padlet.com/asdavis1/7yisizhrlvo/wish/198194432 He fired a stream of tiny particles of positive charges at a thin sheet of gold foil
His used the gold foil experiment to conclude that atoms were just empty space
He concluded that the nucleus is dense and consists of Protons and Neutrons ]]> 2017-10-18 12:51:08 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198194432 Dalton 1501611 https://padlet.com/asdavis1/7yisizhrlvo/wish/198194604 Showed that common substances broke down into the same element in the same proportions ]]> 2017-10-18 12:51:25 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198194604 J.J. Thompson-Owen Chambers 1563223 https://padlet.com/asdavis1/7yisizhrlvo/wish/198194754 -Discovered the Electron in 1897
-Won the 1906 Nobel Prize for his discovery.
-Taught Earnest Rutherford and Neils Bohr. ]]> 2017-10-18 12:51:41 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198194754 Schrodinger & Heisenberg 1635855 https://padlet.com/asdavis1/7yisizhrlvo/wish/198195020
Stated that electrons don't move in definite paths and can be unpredictable
https://youtu.be/ReqQ0FdR3Y4
]]> 2017-10-18 12:52:10 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198195020 Erwin Schrödinger and Werner Heisenberg 1635682 https://padlet.com/asdavis1/7yisizhrlvo/wish/198195565  In 1826 Erwin made the electron "cloud" structure. He created the Schrödinger wave equation) that helps explain the movement of the electrons. Werner Heisenberg was born is Wurzburg is 1901. In 1926, when he was 26, he used a microscope to measure the momentum from an electron. ]]> 2017-10-18 12:53:18 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198195565 Dalton 15032811 https://padlet.com/asdavis1/7yisizhrlvo/wish/198195920 various compounds were a combination of atoms of different elements back of a particular size and mass  ]]> 2017-10-18 12:54:02 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198195920 Dalton 1507821 https://padlet.com/asdavis1/7yisizhrlvo/wish/198196765 Common substances broke down into the same elements ]]> 2017-10-18 12:55:42 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198196765 1496325 https://padlet.com/asdavis1/7yisizhrlvo/wish/198198113
]]> 2017-10-18 12:58:18 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198198113 Bohr 1503434 https://padlet.com/asdavis1/7yisizhrlvo/wish/198198452 He said that electrons are able to jump from energy levels to another but are not able to exist in the space in between. ]]> 2017-10-18 12:59:13 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198198452 Positively charged alpha particles at a sheet of paper helped him discover that some parts of the atom allow particles through and some don't 1503331 https://padlet.com/asdavis1/7yisizhrlvo/wish/198199193 2017-10-18 13:00:36 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/198199193 asdavis1 https://padlet.com/asdavis1/7yisizhrlvo/wish/201542820 2017-10-29 21:57:21 UTC https://padlet.com/asdavis1/7yisizhrlvo/wish/201542820