https://padlet.com/marentobar/wkf1cilz8m67g9ss Everything is made of ATOMS. en-us 2023-02-08 11:18:11 UTC 2023-02-15 11:19:33 UTC hello@padlet.com https://padlet.net/icons/png/269b.png marentobar https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2474760528 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 09:58:24 UTC https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2474760528 marentobar https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481126596 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 08:33:47 UTC https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481126596 marentobar https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481127956 He discovered negatively charged particles inside the atom (electrons). 

]]> 2023-02-14 08:35:08 UTC https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481127956 marentobar https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481128921 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 08:36:03 UTC https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481128921 marentobar https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481129825 He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels. 

]]> 2023-02-14 08:37:09 UTC https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481129825 marentobar https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481130809 He proposed that electrons do not travel in definite paths around the nucleus.

]]> 2023-02-14 08:38:16 UTC https://padlet.com/marentobar/wkf1cilz8m67g9ss/wish/2481130809