https://padlet.com/20204002/o5p0qtilaern Made with a lightning strike of genius en-us 2017-10-04 16:23:52 UTC 2025-05-07 22:47:51 UTC hello@padlet.com 20204002 https://padlet.com/20204002/o5p0qtilaern/wish/193962962 all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.]]> 2017-10-04 16:33:57 UTC https://padlet.com/20204002/o5p0qtilaern/wish/193962962 20204002 https://padlet.com/20204002/o5p0qtilaern/wish/193965080 proposed the plum pudding model of the atom in 1904 before the discovery of the atomic nucleus in order to include the electron in the atomic model. In Thomson's model, the atom is composed of electrons.]]> 2017-10-04 16:37:30 UTC https://padlet.com/20204002/o5p0qtilaern/wish/193965080 20204002 https://padlet.com/20204002/o5p0qtilaern/wish/193972673 an atom is an empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths]]> 2017-10-04 16:48:54 UTC https://padlet.com/20204002/o5p0qtilaern/wish/193972673 20204002 https://padlet.com/20204002/o5p0qtilaern/wish/193974029 The Bohr Model is a planetary model in which the negatively-charged electrons orbit a small, positively-charged nucleus similar to the planets orbiting the Sun]]> 2017-10-04 16:51:11 UTC https://padlet.com/20204002/o5p0qtilaern/wish/193974029 20204002 https://padlet.com/20204002/o5p0qtilaern/wish/193975676 The quantum mechanical model of the atom uses complex shapes of orbitals, volumes of space in which there is likely to be an electron.]]> 2017-10-04 16:53:36 UTC https://padlet.com/20204002/o5p0qtilaern/wish/193975676 20204002 https://padlet.com/20204002/o5p0qtilaern/wish/193977689 The Electron Cloud Model is used to describe where electrons are when they go around the nucleus of an atom.]]> 2017-10-04 16:56:54 UTC https://padlet.com/20204002/o5p0qtilaern/wish/193977689