https://padlet.com/pequita_justin/q9vg34lt6hexhccc By:Justin Pequita en-us 2020-11-23 01:42:18 UTC 2020-11-23 03:28:52 UTC hello@padlet.com pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950796329 Democritus made his discovery in 450 B.C. His model was accurate that matter consisted of tiny particles called atoms. It was also inaccurate because he thought matter and shapes could not be divided. They were uncuttable.]]> 2020-11-23 02:27:24 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950796329 pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950803559 John Dalton made his discovery in 1803 and his model was accurate because he joined 2 wooden balls together to show that atoms form compounds. But he was also inaccurate because the wooden balls he used as atoms he thought were solid and the smallest particle of matter. It doesn't include sub-atomic, there is no electrons, no empty space, and 0 movement.]]> 2020-11-23 02:33:09 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950803559 pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950829658 J.J Thomson made his discovery in 1897 and his model showed how there is negative electrons, and positive protons, which he believed to be a "neutral" charge. it was inaccurate because include the nucleus.]]> 2020-11-23 02:52:32 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950829658 pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950838599 Ernest Rutherford made his discovery in 1911 and his model was accurate because he discovered that atoms have a nucleus that is positively charged that he named protons. He showed mos thte mass of an atom is in the nucleus, shows the eclectrons orbit the nucleus.]]> 2020-11-23 02:59:09 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950838599 pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950845947 Niels Bohr made his discovery in 1913 and his was accurate because his model showed the nucleus and showed the charges of the subatomic particles. It shows the mass of an atom in the nucleus, and shows the electrons orbit the nucleus but he forgot to show the speed of the electrons, and the correct amount of empty space.]]> 2020-11-23 03:04:44 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950845947 pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950854024 The model of an atom has changed durastically throughout many years. we learned that atoms make up different substances and are the smallest particles of matter. in the past, scientist thought that only electrons were negatively charged and then protons were discovered and they learned that they had a positive charge, and then the nucleus. they later on discover that all three of those all linked into making an atom.]]> 2020-11-23 03:10:26 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950854024 pequita_justin https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950866046 In the present time, our atomic model now shows the atom having a nucleus, that electrons orbit around, the charges of subatomic particles, that most of the mass of an atom is in the nucleus. what the present model still doesn't include in the model is the amount of empty in the atom, and the speed of electrons.]]> 2020-11-23 03:19:44 UTC https://padlet.com/pequita_justin/q9vg34lt6hexhccc/wish/950866046