https://padlet.com/norazkoitia/c1u03e1wfibgmdw5 en-us 2023-02-08 11:18:34 UTC 2023-02-15 11:22:02 UTC hello@padlet.com https://padlet.net/icons/png/269b.png norazkoitia https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2474757388 He proposed that matter could not be divided into smaller pieces forever. He said that matter was made of small, hard particles that he called “atoms”. ]]> 2023-02-09 09:55:38 UTC https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2474757388 norazkoitia https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481129029 He discovered negatively charged particles inside the atom (electrons). 

]]> 2023-02-14 08:36:12 UTC https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481129029 norazkoitia https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481131723 He proposed that in the center of the atom is positively charged part called the nucleus. He discovered the protons and nucleus. 

]]> 2023-02-14 08:39:18 UTC https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481131723 norazkoitia https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481133124 He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels. ]]> 2023-02-14 08:40:50 UTC https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481133124 norazkoitia https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481134782 He proposed that electrons do not travel in definite paths around the nucleus.

]]> 2023-02-14 08:42:33 UTC https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481134782 norazkoitia https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481140424 He created the very first atomic theory. 
All substances are made of atoms. Atoms are small particles that cannot be created, divided, or destroyed. Atoms are invisible.
Atoms join together to make new substances (molecules).

]]> 2023-02-14 08:48:30 UTC https://padlet.com/norazkoitia/c1u03e1wfibgmdw5/wish/2481140424