Unit 1, chap 2 - Chapter2 ClicktoeditMastersubtitlestyle...

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Click to edit Master subtitle style 7/25/11 Chapter 2 Modern View of Atomic Structure: An Introduction and Naming Compounds
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7/25/11 Scanning Tunneling Microscopy (STM)
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7/25/11 Nickel atoms Iron on Copper
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7/25/11 Atomic Structure The atom is composed of protons, neutrons, and electrons In a neutral atom, the number of electrons and protons are equal The number of protons identified the element This is the atomic number and is given the symbol “Z” The number of protons + the number of neutrons are essentially responsible for the mass (amu) of the atom
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7/25/11
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7/25/11 The Fundamental Particles Atomic number: Z Number of protons in the nucleus of an atom. All atoms of the same element have the same number of protons Atomic mass number: A Number of protons and neutrons in the nucleus of an atom Isotopes Atoms of the same element with the same number of protons but different numbers of neutrons
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7/25/11 Isotopes Isotopic symbol (the nuclide) X = symbol of the element
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Unit 1, chap 2 - Chapter2 ClicktoeditMastersubtitlestyle...

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