atoms2 - Chapter 2 Atoms and Elements The Atom Atomic...

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LecturePLUS Timberlake 1 Chapter 2 Atoms and Elements The Atom Atomic Number and Mass Number Isotopes
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LecturePLUS Timberlake 2 Atomic Theory Atoms are building blocks of elements Similar atoms in each element Different from atoms of other elements Two or more different atoms bond in simple ratios to form compounds
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LecturePLUS Timberlake 3 Subatomic Particles Particle Symbol Charge Relative Mass Electron e - 1- 0 Proton p + + 1 Neutron n 0 1
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LecturePLUS Timberlake 4 Location of Subatomic Particles 10 -13 cm electrons protons neutrons 10 -8 cm nucleus
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LecturePLUS Timberlake 5 Atomic Number Counts the number of protons in an atom
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LecturePLUS Timberlake 6 Atomic Number on the Periodic Table 11 Na Atomic Number Symbol
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LecturePLUS Timberlake 7 All atoms of an element have the same number of protons 11 Na 11 protons Sodium
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LecturePLUS Timberlake 8 Learning Check State the number of protons for atoms of each of the following: A. Nitrogen 1) 5 protons 2) 7 protons 3) 14 protons B. Sulfur 1) 32 protons 2) 16 protons 3) 6 protons C. Barium 1) 137 protons 2) 81 protons 3) 56 protons
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This note was uploaded on 11/09/2011 for the course CHEM 201 taught by Professor Peterson during the Fall '11 term at BYU.

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atoms2 - Chapter 2 Atoms and Elements The Atom Atomic...

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