https://padlet.com/jakesperez/10icevrfi3dg24xm The history from the atom en-us 2023-02-14 11:08:49 UTC 2023-02-15 09:15:31 UTC hello@padlet.com https://padlet.net/icons/png/1f50d.png jakesperez https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2481604546 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”. 

]]> 2023-02-14 11:23:15 UTC https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2481604546 jakesperez https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483190477 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).

]]> 2023-02-15 09:11:43 UTC https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483190477 jakesperez https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483191330 He discovered negatively charged particles inside the atom (electrons). 

]]> 2023-02-15 09:12:34 UTC https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483191330 jakesperez https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483192671 He proposed that in the center of the atom is positively charged part called the nucleus. He discovered the protons and nucleus. 

]]> 2023-02-15 09:13:47 UTC https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483192671 jakesperez https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483193550 He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels. 

]]> 2023-02-15 09:14:40 UTC https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483193550 jakesperez https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483194293 He proposed that electrons do not travel in definite paths around the nucleus.]]> 2023-02-15 09:15:31 UTC https://padlet.com/jakesperez/10icevrfi3dg24xm/wish/2483194293