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									F0 9                                                   AGK's CHM 111                                Electron Configu ration Practice


                                 Only for your practice. Will not be graded. Feel free to work in groups.

1. Consider the following sets of quantum numbers. Which set(s) is impossible?
                            n        I       ml        s
Set a                       1        0                 +112
Set b                       3        3      0          + 1/2
Set c                       2        1      1          -1/2
Set d                       3        2      -2         -112
Set e                       3        1      -2         -1/2
Set f                       2        0      0          -1/2

2. How many i.) orbitals and ii .) electrons in an atom can have each of the following quantum numbers or

sublevel orbital designations?

                                                                  11


a.       n   =   2, I = 1       Jp
b. 2d                                           5'                     10

c. 4s

d.       4p                                  3
                        '?>~ ~ I J-~II\.
e. n = 3, I =          1, m = + 1            I
f.   n   = 5, 1= 3 sf                        f
g.   n =      3, ~ = + 1 2
                       ;                     9

3. List 3 factors that influence the                 err 0 a particular electron.

             Z   ~
                      .J ( .ztl~           cf crr~tJ)
                                                              J
                                                                  n (~i~
                                                  ~~bJcJJ
4. Write a full set of quantum numbers for th e following :

                 a. The outer most electron of a rubidium ion.                5"5 ' n::; 5   ..1. -:;. 0 mJ- ~ Q
                 b . The electron gained when and S' ion becomes an S-2 ion.
                                                                                      3p
                 c. The electron lost when an Ag atom ionizes.
                                                               55           11=S-..£,,0


5.       The calcium atom is much larger than the calcium ion, while the fluorine atom is much smaller than the
fluoride ion. Explain.

								
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