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Orbital Diagrams

Orbital Diagrams. Chem -To-Go Lesson 9 Unit 2. Electron Configuration. Write the electron configuration for selenium. Write the noble gas notation for selenium. Electron configuration: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 4 Noble gas notation: [ Ar ]4s 2 3d 10 4p 4. What does it mean?.

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Orbital Diagrams

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  1. Orbital Diagrams Chem-To-Go Lesson 9 Unit 2

  2. Electron Configuration • Write the electron configuration for selenium. • Write the noble gas notation for selenium. • Electron configuration: 1s22s22p63s23p64s23d104p4 • Noble gas notation: [Ar]4s23d104p4

  3. What does it mean? Electron configuration: 1s22s22p63s23p64s23d104p4 Coefficients = energy levels Letters (s,p,d,f) = sublevel or shape of cloud Superscripts = electrons Important information about an atom’s electrons: Number of electrons Number of energy levels Number of valence electrons Number of unpaired electrons Number of empty sublevels on an energy level Number of empty orbitals in a sublevel

  4. Drawing Orbital diagrams Electron configuration of Se: 1s22s22p63s23p64s23d104p4 Steps to drawing orbital diagrams: Write the electron configuration. Draw orbitals for each piece of the configuration. Draw electrons into the orbitals. Be sure to follow the rules! s = 1 orbital p = 3 orbitals d = 5 orbitals f = 7 orbitals 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4

  5. Orbital diagram information Important information about an atom’s electrons: Number of electrons Number of energy levels Number of valence electrons Number of unpaired electrons Number of empty sublevels on an energy level Number of empty orbitals in a sublevel

  6. Orbital diagram information Try to answer the questions below on your viewing guide. Important information about an atom’s electrons: Number of electrons Number of energy levels Number of valence electrons Number of unpaired electrons Number of empty sublevels on an energy level Number of empty orbitals in a sublevel

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