Download 29 Chapter 8 - Chemistry 7

1
Orbital Filling and the Periodic Table
The order in which the orbitals are filled can be obtained directly
from the periodic table.
2
Review Activity
• Form 4 groups.
• Each group will be given a set of 13 questions.
▫ Decide who among the members will answer 2
questions.
• Sit by columns.
• The question sheet will be given to the first person to
answer. The questions will be answered in sequence. Do
not open the entire sheet.
• The first group to finish gets 7/7 for speed. The second
group gets 6/7, third group 5/7, and fourth group 4/7.
3
1. Write a full set of quantum numbers for the
electron gained when an 𝐹 − ion forms from an F
atom.
2. Identify the element with the electronic
configuration 1s22s22p63s23p3.
3. How many electrons in an atom can have the
quantum numbers n=2, l=1?
4. Write the full ground-state electron
configuration for Mg atom.
5. How many electrons in an atom can have the
sublevel designation 4s?
6. How many electrons in an atom can have the
sublevel designation 4p?
7. How many electrons in an atom can have the
quantum numbers n=3, l=1, ml=+1?
n=2, l=1,
1
ml=+1, ms= −
2
P
6
1s22s22p63s2
2
6
2
4
8. Write the condensed ground-state electron
[Ne] 3s23p1
configuration for Al.
9. Write a full set of quantum numbers for the
n=3, l=1,
−
1
electron gained when an 𝑆 ion becomes an
m
=+1,
m
=
−
l
s
2
𝑆 2− ion.
10. Draw a partial orbital diagram for Cl.
[Ne]    
11. Write the condensed electron
configuration from the partial orbital diagram:
12. Write the symbol, group number, and
period number of the element [He] 2s22p4.
13. Write a set of quantum numbers for the 3rd
electron of the Ar atom.
[He] 2s22p3
O, 16/IV A/6A, 2
n=2, l=0, ml=0,
1
ms= +
2
5
Period 4 Elements
*Colored
type indicates the sublevel to which the last electron is added.
6
Period 4 Elements
*Colored
type indicates the sublevel to which the last electron is added.
7
Partial ground-state electron configurations
8
Partial ground-state electron configurations
*Irregular filling patterns will not be part of any assessment.