The Periodic Table 01 Slide 1 Electron Radial Distribution 03 p - PowerPoint PPT Presentation

The Periodic Table 01 Slide 1

Electron Radial Distribution 03 • p Orbital Shapes: http://www.shef.ac.uk/chemistry/orbitron/ Slide 2

Electron Radial Distribution 04 • d and f Orbital Shapes: Slide 3

Shapes of Orbitals 01 Give a possible combination of n and l quantum numbers for the following third-shell orbitals: Slide 4

Spin Quantum Number 01 • Spin Quantum Number: • The Pauli Exclusion Principle states that – “in an atom no two electrons can have the same four quantum numbers”. Slide 5

Effective Nuclear Charge 02 When we have several electrons: we say that these electrons shield the outer electrons Slide 6

Electron Configuration of Atoms 07 He  1 s 2 1 s Li   1 s 2 2 s 1 1s 2 s Be   1 s 2 2 s 2 1 s 2 s B    1 s 2 2 s 2 2 p 1 1 s 2 s 2 p x 2 p y 2 p z Slide 7

Electron Configuration of Atoms 08 C     1 s 2 2 s 2 2 p 2 1 s 2 s 2 p x 2 p y 2 p z N ?   1 s 2 2 s 2 2 p 3 1 s 2 s 2 p x 2 p y 2 p z Slide 8

Electron Configuration of Atoms 09 N      1 s 2 2 s 2 2 p 3 1 s 2 s 2 p x 2 p y 2 p z O      1 s 2 2 s 2 2 p 4 1 s 2 s 2 p x 2 p y 2 p z Ne      1 s 2 2 s 2 2 p 6 1 s 2 s 2 p x 2 p y 2 p z S [Ne]     [Ne] 3 s 2 3 p 4 3 s 3 p x 3 p y 3 p z Slide 9

Electron Configuration of Atoms 13 Slide 10

Electron Configuration of Atoms 14 Slide 11

Electron Configuration of Atoms 15 • Anomalous Electron Configurations: Result from unusual stability of half-filled & full-filled subshells. Chromium should be [Ar] 4 s 2 3 d 4 , but is [Ar] 4 s 1 3 d 5 • Copper should be [Ar] 4 s 2 3 d 9 , but is [Ar] 4 s 1 3 d 10 • Slide 12