Atoms_and_Quantum_Numbers_F10

Atoms_and_Quantum_Numbers_F10 - 1 Atoms and Quantum Numbers...

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Unformatted text preview: 1 Atoms and Quantum Numbers GLY 4200 – Lecture 5 –Fall, 2010 2 Atom • Grossly oversimpliflied view of atom, but it does have a nucleus and electron cloud 3 Nucleons • Protons – charge of +1 • Neutrons – neutral, with a mass slightly greater than the proton • Atomic number = number of protons, often denoted z • Atomic number is designated as a left subscript to the chemical symbol - 1 H, 14 Si 4 Atomic Weight • The atomic weight equals the number of protons plus neutrons • Atomic weight is shown as a left superscript to the chemical symbol, such as 16 O 5 Isotopes • One element may have one or more numbers of neutrons: 1 1 H is normal hydrogen, with one proton and no neutrons 1 2 H is deuterium, or heavy hydrogen, with one proton and one neutron 1 3 H is tritium, a radioactive form of hydrogen, with one proton and two neutrons • Collectively, the different types of the atoms of one element are called isotopes 6 Ions • Cation- the atom has lost electrons, so there...
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This note was uploaded on 12/13/2010 for the course GLY 4200c taught by Professor Warburton during the Spring '10 term at FAU.

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Atoms_and_Quantum_Numbers_F10 - 1 Atoms and Quantum Numbers...

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