https://padlet.com/alzinovoy/zrggfvh5yzh9983a Atomic Theory Timeline en-us 2020-12-04 14:52:09 UTC 2020-12-07 01:39:54 UTC hello@padlet.com alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/987730072 The Greek Model
- Contributed to the atomic theory by naming the smallest unit of matter and atom. Atom means "indivisible."]]> 2020-12-04 14:53:33 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/987730072 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/990382958 - He didn't believe in atoms. He believed that was only made up of fire, water, earth, and air.

]]> 2020-12-05 17:32:37 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/990382958 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/990430796 Atomic Theory
- Believed that atoms of the same element are exactly alike and that atoms of different elements are different.
- He also believed that atoms of different elements combine to form compounds. 
- Said that atoms are too small to see and they are indestructible. ]]> 2020-12-05 18:04:10 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/990430796 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/990444592 Plum Pudding Model
- Had a theory that there are small, negatively charged particles inside an atom called electrons.

]]> 2020-12-05 18:15:03 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/990444592 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992424598 The Nuclear Model
-Discovered that Atoms contain mostly empty space.
- Learned that there is a small, dense, positively charged nucleus.
- Figured out that electrons are scattered around the nucleus at a distance.

]]> 2020-12-07 00:44:18 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992424598 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992441159 The planetary Model
- Figured out that energy levels are located at certain distances from the nucleus
- Bohr also learned that the electron location depends on how much energy it has
- Discovered that electrons travel in paths called energy levels

]]> 2020-12-07 00:54:12 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992441159 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992443501 - Chadwick discovered the neutron
- Proved Rutherford's theory that most of the mass is in the atom's nucleus]]> 2020-12-07 00:55:25 UTC https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992443501 alzinovoy https://padlet.com/alzinovoy/zrggfvh5yzh9983a/wish/992503527 - Electrons are found in electron clouds, not in paths.
- Electrons move around the nucleus billions of times in one second.

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