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Structure of an Atom Structure of an Atom Nucleus: Structure of an Atom Nucleus: Proton Structure of an Atom Nucleus: Proton + Structure of an Atom Nucleus: Proton + Neutron Structure of an Atom Nucleus: Proton + Neutron No charge Structure of an Atom Nucleus: Proton + Neutron No charge Outside the Nucleus: Structure of an Atom Nucleus: Proton + Neutron No charge Outside the Nucleus: Electron Structure of an Atom Nucleus: Proton + Neutron No charge Outside the Nucleus: Electron - Structure of an Atom Electrons Nucleus Structure of an Atom Atomic Number - Structure of an Atom Atomic Number The number of Protons in the nucleus Structure of an Atom Structure of an Atom Atomic Mass - Structure of an Atom Atomic Mass The number of Protons plus the number of Neutrons in the nucleus Structure of an Atom Structure of an Atom Note: Structure of an Atom Note: On the Periodic Table Structure of an Atom Note: On the Periodic Table The number of Protons EQUALS the number Electrons in the atom Structure of an Atom Note: On the Periodic Table Structure of an Atom Note: On the Periodic Table ALL Elements on the Periodic Table are NEUTRAL Structure of an Atom Note: On the Periodic Table Structure of an Atom Note: On the Periodic Table The mass of an Element may change, but the Protons DO NOT! Structure of an Atom Structure of an Atom Question: Structure of an Atom Question: If the Protons stay the same, what is different to make the Mass change? Structure of an Atom Answer: Structure of an Atom Answer: Neutrons Role of Electrons Role of Electrons Tiny Particles, Big Spaces Role of Electrons Tiny Particles, Big Spaces Valence Electrons: Role of Electrons Tiny Particles, Big Spaces Valence Electrons: Electrons farthest away from the Nucleus Role of Electrons Tiny Particles, Big Spaces Valence Electrons: Involved in bonding # of Valence Electrons Models of Atoms Models of Atoms Dalton Model Models of Atoms Dalton Model John Dalton Models of Atoms Dalton Model John Dalton Great Britain Models of Atoms Dalton Model 1808 John Dalton Great Britain Models of Atoms Dalton Model 1808 Models of Atoms Dalton Model 1808 Each Element is made of small atoms. Models of Atoms Dalton Model 1808 Each Element is made of small atoms. Tiny , solid balls Models of Atoms Models of Atoms Thomson Model Models of Atoms Thomson Model J. J. Thomson Models of Atoms Thomson Model J. J. Thomson Great Britain Models of Atoms Thomson Model 1897 J. J. Thomson Great Britain Models of Atoms Thomson Model 1897 Models of Atoms Thomson Model Plum Pudding - 1897 Models of Atoms Thomson Model 1897 Plum Pudding - positively charge sphere with electrons inside Models of Atoms Models of Atoms Nagaoka Model Models of Atoms Nagaoka Model Hantaro Nagaoka Models of Atoms Nagaoka Model Hantaro Nagaoka Japan Models of Atoms Nagaoka Model 1904 Hantaro Nagaoka Japan Models of Atoms Nagaoka Model 1904 Models of Atoms Nagaoka Model 1904 Large Sphere in center with positive charge, Models of Atoms Nagaoka Model 1904 Large Sphere in center with positive charge, electrons outside Models of Atoms Models of Atoms Rutherford Model Models of Atoms Rutherford Model Ernest Rutherford Models of Atoms Rutherford Model Ernest Rutherford Great Britain Models of Atoms Rutherford Model 1911 Ernest Rutherford Great Britain Models of Atoms Rutherford Model 1911 Models of Atoms Rutherford Model 1911 Atom is mostly Empty Space Models of Atoms Rutherford Model 1911 Atom is mostly Empty Space Electrons orbit randomly around the nucleus Gold Foil Experiment Models of Atoms Models of Atoms Bohr Model Models of Atoms Bohr Model Niels Bohr Models of Atoms Bohr Model Niels Bohr Denmark Models of Atoms Bohr Model 1913 Niels Bohr Denmark Models of Atoms Bohr Model 1913 Models of Atoms Bohr Model 1913 Electrons are not Random Models of Atoms Bohr Model 1913 Electrons are not Random Electrons in specific layers Models of Atoms Bohr Model 1913 Electrons are not Random Electrons in specific layers Give energy as they move Models of Atoms Models of Atoms Chadwick Model Models of Atoms Chadwick Model James Chadwick Models of Atoms Chadwick Model James Chadwick Great Britain Models of Atoms Chadwick Model 1932 James Chadwick Great Britain Models of Atoms Chadwick Model 1932 Models of Atoms Chadwick Model 1932 Neutron has same mass as the Proton but no electrical charge Models of Atoms Models of Atoms Modern Model Models of Atoms Modern Model NOW Models of Atoms Modern Model Electrons form a negatively charged Cloud NOW Models of Atoms Modern Model Electrons form a negatively charged Cloud NOW Models of Atoms Modern Model Electron Cloud Theory NOW I won’t ask if there are more notes!
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