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Discovery of Protons Determining element

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Discovery of Protons Determining element

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In 1913, Henry Mosley was the first to theorize that every atom of a particular element will have the same number of protons. -John

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The modern wave model draws heavily on quantum theory. It holds that can electrons jump energy levels, and that they act as both particles and waves. -John

https://www.youtube.com/watch?v=fcfQkxwz4Oo

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Erwin Schrodinger further expanded on Bohr's quantum theory, using math to theorize that electrons behave as both particles and waves, and that particles hop from place to place with a particular probability.
-John

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They were scientist who discovered Polonium and Radium.They won two noble peace prizes. She found the radiation of some elements and that's how she ended up dying.

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Electrons circle the nucleus many upon many times.They move is a very specific pattern not just randomly. They are located through out the atom on different energy levels.-notes

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Niels bohr was a Danish Scientist who discovered that each electron had a different energy level. he found out that electrons move in definite orbits.

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Nobelprize.org, The Official Web Site of the Nobel Prize

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Ernest Rutherford found that when he shot positively charged "bullets" most of them passed through the gold sheet but when they repelled he found that they seemed to hit something solid. This means that positive charges repel positive charges.The bounce back was so powerful it was like shooting an elephant bullet through a tissue and having it bounce back and hit you.-Notes

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He discovered the electron.He thought that hydrogen atoms must be made up of more than two thousand. The model was eventually proved wrong by later scholars.

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He discovered the neutron. For his experiment he had shot alpha particles at beryllium and a large amount of radiation was emitted.

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John Dalton was a English Chemist who was the first person to test that an atom is a particle. He deducted an experiment that showed that all elements are made up of atoms.

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Democritus, an ancient Greek philosopher, hypothesized that everything in the universe was ultimately comprised of small indivisible pieces, called Atomos, meaning 'indivisible". He was ignored for thousands of years because the most common belief was that everything in the universe was comprised of combinations of four elements- Fire, Water, Earth, and Air.
-John
Notes
https://ericgerlachdotcom.files.wordpress.com/2013/10/democritus.jpg