Pre-AP Chemistry 11 Atomic Theory II Name: Date: Block: 1. Electronic Structure 2. Electron Configuration 3. EC Relationship to Periodic Table 4. Core Notation 5. Electron Configuration of Ions Electronic Structure What you should already know… BOHR DIAGRAMS: Example: Calcium • First shell has 2 electrons • Second, third shell has 8 electrons Energy level • A specific amount of ____________ which an ____________ in an atom can possess Bohr’s Postulate #1 • The hydrogen atom had only certain allowed ___________________________ or stationary states. • The lowest (smallest) orbit was called the “________________________” and designated n = 1. • The larger orbits were called “________________________” and designated as n = 2, n = 3, n = 4, etc. Bohr’s Postulate #2 • As long as the electron moved within the same energy level, the electron did not radiate or absorb energy Bohr’s Postulate #3 • The electron could only move from one allowed energy level to another if it _____________________ or _____________________ an amount of energy equal to the energy different between the two energy level.
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