THE HISTORY OF THE ATOM by Aner Romero Amenabar https://padlet.com/aneromero3/gud1j6il3sksu6sn Eveything is made of ATOMS en-us 2023-02-14 11:10:29 UTC 2025-11-07 03:41:29 UTC hello@padlet.com https://padlet.net/icons/png/1f52d.png SCHRODINGER AND HEISENBERG (1926)He proposed that electrons do not travel in definite paths around the nucleus. aneromero3 https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481578123 2023-02-14 11:14:07 UTC https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481578123 DEMOCRITUS (440 BC) aneromero3 https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481584908

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 11:16:14 UTC https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481584908 NIELS BOHR (1913)He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels. aneromero3 https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481589704 He improved on Rutherford's model. He proposed that electrons move around the nucleus in certain paths called energy levels. ]]> 2023-02-14 11:17:49 UTC https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481589704 ERNEST RUTHERFORD (1909-1911)He proposed that in the center of the atom is positively charged part called the nucleus. He discovered the protons and nucleus. aneromero3 https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481596051 2023-02-14 11:19:59 UTC https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481596051 JOHN DALTON (1803) aneromero3 https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481606933 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 11:24:05 UTC https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2481606933 JJ THOMSON (1897) aneromero3 https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2483185922 He discovered negatively charged particles inside the atom (electrons).]]> 2023-02-15 09:07:09 UTC https://padlet.com/aneromero3/gud1j6il3sksu6sn/wish/2483185922