https://padlet.com/abyramms1006/65ux485o3i0om7ay en-us 2022-10-14 06:43:57 UTC 2025-11-15 14:39:20 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/1760361195/777a6f751489839cda86c5a0ad53d43b/scary_penny.jpeg abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344466716 Democritus made the first atomic model.]]> 2022-10-18 04:54:07 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344466716 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344469129 Aristotle proposed that all things are made up of the four elements: fire, water, air, earth. He believed all materials on earth were made up of small amounts of each element. ]]> 2022-10-18 04:56:27 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344469129 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344470863 This is the model of the atomic theory Dalton proposed.]]> 2022-10-18 04:58:00 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344470863 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344471953 Thompson was the first person to propose the idea of negatively charged electrons and unknown positive charges.]]> 2022-10-18 04:58:59 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344471953 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344473281 Rutherford said that the atom has an atomic nucleus containing protons and neutrons. He also stated that the electrons go around the nucleus in a electron orbit, but he died before he could prove his theory.]]> 2022-10-18 05:00:15 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344473281 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344474512 Bohr proposed the theory that the electrons orbit the nucleus in a predetermined route.]]> 2022-10-18 05:01:19 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344474512 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344475169 Heisenberg and Schrodinger took Bohr's atomic model and solved math equations to figure out the probability of finding an electron in a certain spot. The atomic model created by Heisenberg and Schrodinger is known as the quantum mechanical model of the atom.]]> 2022-10-18 05:01:57 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344475169 abyramms1006 https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344475737 The atom we know today is made up of a nucleus, protons, electrons, and neutrons. The nucleus holds protons and neutrons in its core, and electrons orbit the nucleus. We can now confirm that all things are made up of atoms, atoms can be split, atoms can be combined to create molecules, and atoms are not all the same. The number of protons in an atom determine what element it belongs to, although they all may have the same number of protons each atom of a certain element may not be the same in mass and weight.]]> 2022-10-18 05:02:23 UTC https://padlet.com/abyramms1006/65ux485o3i0om7ay/wish/2344475737