Atomic Structure Timeline by YASH RATHI https://padlet.com/19sb0114yash/MyChemistryTimeline Made with a thirst for chemistry en-us 2021-06-30 11:05:14 UTC 2021-07-16 07:40:07 UTC hello@padlet.com John Dalton-1803 19sb0114yash https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631582711 John Dalton was the one who named 'atom'. It comes from the Greek word 'Atomos' meaning un-divisible. His laws were-
1. Atoms are indivisible-Proved wrong later
2.One elements' atoms are different from others
3. Compounds are a mixture of atoms]]> 2021-06-30 11:07:20 UTC https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631582711 J.J. Thompson-1904 19sb0114yash https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631586724 Thompson discovered atoms, negatively charged particles.
He thought that they floated in a positively charged cloud which was later proven wrong.]]> 2021-06-30 11:12:20 UTC https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631586724 Ernest Rutherford-1911 19sb0114yash https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631589637 Rutherford is famous for an gold foil experiment. He fired positively charged alpha particles at gold foil. some passed through, while others got deflected. This let him to believe that there is lots of empty space in an atom and the mass is concentrated in the centered]]> 2021-06-30 11:16:02 UTC https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631589637 Neils Bohr-1913 19sb0114yash https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631595581 Bohr modified Rutherford model and stated that electrons moved around the nucleus in fixed paths and quantities. However, This did not explain why the electrons did not fall into the nucleus and collapse]]> 2021-06-30 11:23:12 UTC https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631595581 Erwin Schrodinger-1926 19sb0114yash https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631599310  Erwin said that electrons moved in waves not paths or quantities. He discovered orbitals which help predict where the electrons are, since they move very fast]]> 2021-06-30 11:27:51 UTC https://padlet.com/19sb0114yash/MyChemistryTimeline/wish/1631599310