https://padlet.com/saramugica1/wfy8guqom9ay5x1r Everything is made of atoms. en-us 2023-02-14 11:05:39 UTC 2026-03-12 23:53:01 UTC hello@padlet.com https://padlet.net/icons/png/1f9ec.png saramugica1 https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481598106 He had an idea of an atom, meaning a piece of matter that was not able to be divided. 

]]> 2023-02-14 11:20:43 UTC https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481598106 saramugica1 https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481604899 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 11:23:23 UTC https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481604899 saramugica1 https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481607729 He discovered negatively charged particles inside the atom (electrons). ]]> 2023-02-14 11:24:22 UTC https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481607729 saramugica1 https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481610803 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 11:25:17 UTC https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481610803 saramugica1 https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481613788 He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels.]]> 2023-02-14 11:26:01 UTC https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481613788 saramugica1 https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481616298 He proposed that electrons do not travel in definite paths around the nucleus.]]> 2023-02-14 11:26:46 UTC https://padlet.com/saramugica1/wfy8guqom9ay5x1r/wish/2481616298