Name Atomic Theory Unit Quantum Numbers Orbital Diagrams and Electron Configurations Quantum numbers Q s tell about the energy and location of an electron in an atom To review the four Q s fill in the table below Q name Principle Q Angular Momentum Q Magnetic Q Spin Q Q symbol n m m s What does The The shape this Q tell The energy orientation The spin of of the orbital you about of the orbital of the the electron the electron the electron the electron is in electron is in What are 1 2 3 0 1 2 3 the possible positive n 1 0 values for integers OR s p d f this Q Applying these rules if n 3 what 0 0 are the 3 1 1 0 1 possible 2 2 1 0 1 2 values for the 3 other Q s Is this combination 4 of Q s 4 3 1 2 problem possible NO Is this combination 5 of Q s 7 2 1 2 problem possible NO If you can change only one quantum number how could you change the above sets of Q s to make them possible sets 4 3 4 1 2 could be 4 3 3 1 2 or 4 3 2 1 2 or 7 2 5 1 2 could be 7 6 5 1 2 or 7 2 0 1 2 or These are just two examples of possible ways to change these Q sets However there are many other ways to change only one number to make these sets possible Revised SH 6 29 13 LaBrake Vanden Bout 2013 Name There are two main ways we depict the electrons in an atom Orbital Diagrams and Electron Configurations To help you link Orbital Diagrams Electron Configuration Quantum Numbers and the Periodic Table fill in the table below Q name Q symbol In orbital diagrams does this Q tell you about the shell subshell or orbital the electron is in In electron configuration notation circle the element that is designated by each Q What does this Q tell you about the position in the periodic table Revised SH 6 29 13 n Angular Momentum Q shell sub shell orbital 1s 1s 1s 6d 6d 6d row block Principle Q Magnetic Q Spin Q m m s LaBrake Vanden Bout 2013 Name Let s apply all of this in an example Given the electron configuration and the orbital diagram for Se answer the following questions Electron configuration for Se 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 Orbital Diagram for Se Revised SH 6 29 13 LaBrake Vanden Bout 2013 Name Questions 1 Orbital Diagrams Where are the shells sub shells and orbitals on the orbital diagram Circle and label each one on the diagram above 2 Electron Configuration and Orbital Diagrams a Where are the electrons in blue in the electron configuration on the orbital diagram Circle them in blue on the orbital diagram b Where is the electron circled in green in the orbital diagram in the electron configuration Underline its location in green on the electron configuration What shell is this electron in n 3 What sub shell is this electron in The d sub shell 3 Electron Configuration and Quantum Numbers a What are the possible quantum number sets for the electrons in pink on the electron configuration 4 0 0 OR 4 0 0 b What are 3 possible quantum number sets for the electrons in red on the electron configuration How many total possible quantum number sets are there for these electrons 3 1 1 OR 3 1 1 OR 3 1 0 OR 3 1 1 OR 3 1 1 There are 6 total possible sets c In orange on the electron configuration circle the electrons with the quantum numbers 2 0 0 1 2 and 2 0 0 1 2 4 Orbital Diagrams and Quantum Numbers a What are the possible quantum number sets for the electron circled in purple on the orbital diagram 2 1 1 OR 2 1 1 OR 2 1 0 OR 2 1 0 OR 2 1 1 OR 2 1 1 b In light green on the orbital diagram circle an electron with the quantum numbers 3 2 2 1 2 5 Electron Configuration and the Periodic Table a Without looking at the periodic table what row in the periodic table would you find Se 4th How do you know this Because n of the last electron is n 4 Revised SH 6 29 13 LaBrake Vanden Bout 2013 Name b Without looking at the periodic table what block in the periodic table would you find Se p How do you know this Because of the last electron is 1 p Revised SH 6 29 13 LaBrake Vanden Bout 2013
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