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Unit 2: Atomic Structure and the Periodic Table

Learn about the models of the atom, atomic structure, electromagnetic spectrum, electron configurations, orbital notation, quantum numbers, and periodic table trends in this comprehensive guide.

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Unit 2: Atomic Structure and the Periodic Table

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  1. Unit 2: Atomic Structure and the Periodic Table What do I need to know?

  2. Models of the Atom • Know 5 models by picture and name: Dalton, Thomson, Rutherford, Bohr, Quantum • Explain key features of each model and how it is different from the previous models

  3. Atomic Structure • Determining # of protons, neutrons, electrons • Atomic number = • Mass number = • Isotopes: • Isotope notation:

  4. Electromagnetic Spectrum • p. 213 in textbook

  5. Electron Configurations • 4 types of subshells/orbitals: • # of electrons in each type of subshell • # of orbitals in each type of subshell • Write full and shorthand electron configurations – know where the s, p, d, and f blocks are!

  6. Orbital Notation • Draw orbital notation diagrams: • Aufbau: • Pauli Exclusion: • Hund:

  7. Quantum Numbers • n = • l = • ml = • ms = n, l, ml , ms

  8. Periodic Table Families

  9. Periodic Table Trends

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