https://padlet.com/peruplazaola/92xphb83q8erxrhf Everything is made of atoms. They are really small (tiny) particles. They are so small that we cannot see then with ous year are made up of three particles : protons neutrons and electron en-us 2023-02-09 11:03:25 UTC 2025-12-19 04:46:51 UTC hello@padlet.com https://padlet.net/icons/png/1f9ec.png peruplazaola https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474838494 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 11:09:01 UTC https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474838494 peruplazaola https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474840810 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).

]]> 2023-02-09 11:11:15 UTC https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474840810 peruplazaola https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474850320 He discovered negatively charged particles inside the atom (electrons). ]]> 2023-02-09 11:19:45 UTC https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474850320 peruplazaola https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474850932 He proposed that in the center of the atom is positively charged part called the nucleus. He discovered the protons and nucleus. 

]]> 2023-02-09 11:20:15 UTC https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474850932 peruplazaola https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474851354 He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels. 

]]> 2023-02-09 11:20:38 UTC https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474851354 peruplazaola https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474851780 He proposed that electrons do not travel in definite paths around the nucleus.]]> 2023-02-09 11:21:03 UTC https://padlet.com/peruplazaola/92xphb83q8erxrhf/wish/2474851780