https://padlet.com/50734/awe5egmul4kr Made with love Mia Blankenship en-us 2019-01-08 21:56:10 UTC 2025-10-28 18:20:50 UTC hello@padlet.com 50734 https://padlet.com/50734/awe5egmul4kr/wish/318589462 An atom a fundamental piece of matter. (Matter is anything that can be touched physically.) Everything in the universe (except energy) is made of matter, and, so, everything in the universe is made of atoms.]]> 2019-01-08 22:02:23 UTC https://padlet.com/50734/awe5egmul4kr/wish/318589462 50134 https://padlet.com/50734/awe5egmul4kr/wish/318589554 2019-01-08 22:02:43 UTC https://padlet.com/50734/awe5egmul4kr/wish/318589554 512832 https://padlet.com/50734/awe5egmul4kr/wish/318589690 the basic unit of a chemical element]]> 2019-01-08 22:03:17 UTC https://padlet.com/50734/awe5egmul4kr/wish/318589690 521472 https://padlet.com/50734/awe5egmul4kr/wish/318590280  source of nuclear energy ]]> 2019-01-08 22:05:36 UTC https://padlet.com/50734/awe5egmul4kr/wish/318590280 50734 https://padlet.com/50734/awe5egmul4kr/wish/318590515 John Dalton was the first to adapt Democritus' theory into the first modern atomic model. J.J Thomson was a physicist who is credited for discovering the electron. He used his research on cathode ray tube technology in this discovery. 3.]]> 2019-01-08 22:06:29 UTC https://padlet.com/50734/awe5egmul4kr/wish/318590515 50134 https://padlet.com/50734/awe5egmul4kr/wish/318590591 2019-01-08 22:06:46 UTC https://padlet.com/50734/awe5egmul4kr/wish/318590591 50734 https://padlet.com/50734/awe5egmul4kr/wish/318590801 They were discovered in 1897 by a British physicist named J. J. Thomson.]]> 2019-01-08 22:07:24 UTC https://padlet.com/50734/awe5egmul4kr/wish/318590801 50734 https://padlet.com/50734/awe5egmul4kr/wish/318591222 The next major advance in the history of the atom was the discovery of electrons. These were the first subatomic particles to be identified. They were discovered in 1897 by a British physicist named J. J. Thomson]]> 2019-01-08 22:09:04 UTC https://padlet.com/50734/awe5egmul4kr/wish/318591222 512832 https://padlet.com/50734/awe5egmul4kr/wish/318591263 J. J Thomson]]> 2019-01-08 22:09:10 UTC https://padlet.com/50734/awe5egmul4kr/wish/318591263 50134 https://padlet.com/50734/awe5egmul4kr/wish/318591394 J.J. Thompson discovered the electron in 1897.]]> 2019-01-08 22:09:43 UTC https://padlet.com/50734/awe5egmul4kr/wish/318591394 50734 https://padlet.com/50734/awe5egmul4kr/wish/318591579 Of course jiggling atoms are also critically important in chemical reactions. The fact that atoms cannot be created or destroyed in chemical reactions allows for all sorts of important predictions. ... Every atom is composed of some number of electrons orbiting a heavy but small nucleus.]]> 2019-01-08 22:10:31 UTC https://padlet.com/50734/awe5egmul4kr/wish/318591579 512832 https://padlet.com/50734/awe5egmul4kr/wish/318592111 Atom were discovered in 1897]]> 2019-01-08 22:12:37 UTC https://padlet.com/50734/awe5egmul4kr/wish/318592111 521472 https://padlet.com/50734/awe5egmul4kr/wish/318592157 In 1911, Niels Bohr earned his PhD in Denmark with a dissertation on the electron theory of metals. Right afterwards, he went to England to study with J.J. Thomson, who had discovered the electron in 1897.]]> 2019-01-08 22:12:52 UTC https://padlet.com/50734/awe5egmul4kr/wish/318592157 521472 https://padlet.com/50734/awe5egmul4kr/wish/318592768 The atoms were discovered in the year of 1897.]]> 2019-01-08 22:15:18 UTC https://padlet.com/50734/awe5egmul4kr/wish/318592768 512832 https://padlet.com/50734/awe5egmul4kr/wish/318592961 The first major discovery that set off modern atomic theory was that atoms aren't in fact the smallest things that exist.]]> 2019-01-08 22:16:08 UTC https://padlet.com/50734/awe5egmul4kr/wish/318592961 50134 https://padlet.com/50734/awe5egmul4kr/wish/318593223 They were the first discovery of electrons in 1897]]> 2019-01-08 22:17:04 UTC https://padlet.com/50734/awe5egmul4kr/wish/318593223 521472 https://padlet.com/50734/awe5egmul4kr/wish/318593735 Electrons are found in shells or orbitals that surround the nucleus of an atom.Protons and neutrons are found in the nucleus. They group together in the center of the atom.]]> 2019-01-08 22:19:13 UTC https://padlet.com/50734/awe5egmul4kr/wish/318593735 521472 https://padlet.com/50734/awe5egmul4kr/wish/318594139 The fact that atoms cannot be created or destroyed in chemical reactions allows for all sorts of important predictions. Atoms form the smallest building blocks of chemistry, and they combine to form an infinite variety of more complicated structures, however it turns out atoms are not the smallest pieces of matter.]]> 2019-01-08 22:21:07 UTC https://padlet.com/50734/awe5egmul4kr/wish/318594139 512832 https://padlet.com/50734/awe5egmul4kr/wish/318594324 Of course jiggling atom are also critically important in chemical reactions. The fact that atoms cannot be created or destroyed in chemical reactions allows for all sorts of important predictions. ... Every atom is composed of some number of electrons orbiting a heavy but small nucleus.]]> 2019-01-08 22:22:10 UTC https://padlet.com/50734/awe5egmul4kr/wish/318594324 50134 https://padlet.com/50734/awe5egmul4kr/wish/318595691 It's important for us to know about the atom because everything in the world is made up of atoms.]]> 2019-01-08 22:28:58 UTC https://padlet.com/50734/awe5egmul4kr/wish/318595691