https://padlet.com/cbonner75/8cg7u2pimagtx3or en-us 2022-09-27 11:47:55 UTC 2023-02-13 19:10:44 UTC hello@padlet.com https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480095381 In 1903 Marie Curie added to our understanding of atoms. She found 2 new elements(radium and polonium) formed with atoms. She isolated one decigram of almost pure radium chloride and had determined radium's atomic weight. ]]> 2023-02-13 18:45:09 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480095381 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480096324 He was the first person to discover atoms. He smashed a seashell until he it turned into  fine powder. He called these tiny pieces atomos meaning indivisible. ]]> 2023-02-13 18:45:46 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480096324 zkgreco2 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480101194 JJ Thomson made his discovery of the electron in 1897 and this changed history! he used the cathode ray to discover the electron. the electron was the one out of the three primary types of the atom, the atom was made of Protons(positive) Electrons ( Negative) and Neutrons(Neutral). the electron brings a negative charge to a atom and to basically anything at all. ]]> 2023-02-13 18:49:05 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480101194 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480101196 Joseph Priestley was the first to discover that air wasn't a elementary substance but a composition of gas and air was part of Aristotle's theory, which was the main theory at the time. The machine he used, an upgraded version of the Hales Apparatus, allowed him to study gases which was really hard to do at the time.]]> 2023-02-13 18:49:05 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480101196 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480105317 Neils Bohr discovered the electrons circle the nucleus of the atom in specific allowable paths called orbits. He added to the discovery of the atom by finding out how electrons move around in an atom.]]> 2023-02-13 18:51:58 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480105317 zsgroma1 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480106608 Henry attempted to use high voltage to pull back into their radioactive source. Henry using atomic structure makes things more efficient. ]]> 2023-02-13 18:52:52 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480106608 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480118200 2023-02-13 19:00:09 UTC https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480118200 https://padlet.com/cbonner75/8cg7u2pimagtx3or/wish/2480119780 1.He states that every single atom of an element is the same as every atom of the element
2.he used oxygen combined with either one or two volumes of nitric oxide to discover that Oxygen atoms are unique.

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