https://padlet.com/488993/e4kl4zv3xbn Made with a wink and a smile en-us 2016-10-28 16:06:11 UTC 2025-04-11 14:03:29 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Planets.png 488993 https://padlet.com/488993/e4kl4zv3xbn/wish/133940792 2016-10-28 16:17:59 UTC https://padlet.com/488993/e4kl4zv3xbn/wish/133940792 488993 https://padlet.com/488993/e4kl4zv3xbn/wish/133942177 2016-10-28 16:22:22 UTC https://padlet.com/488993/e4kl4zv3xbn/wish/133942177 488993 https://padlet.com/488993/e4kl4zv3xbn/wish/133945653 John Dalton introduced a new form of the ancient Greek idea of atoms at the beginning of the nineteenth century. In 1897, J.J. Thomson discovered the electron and suggested the 'plum pudding' model of the atom. In 1911, Rutherford suggested that electrons orbit the atomic nucleus like planets round the Sun.]]> 2016-10-28 16:31:11 UTC https://padlet.com/488993/e4kl4zv3xbn/wish/133945653 488993 https://padlet.com/488993/e4kl4zv3xbn/wish/134276648 2016-10-31 16:13:28 UTC https://padlet.com/488993/e4kl4zv3xbn/wish/134276648 488993 https://padlet.com/488993/e4kl4zv3xbn/wish/134278101 2016-10-31 16:17:05 UTC https://padlet.com/488993/e4kl4zv3xbn/wish/134278101