More on Electron Configurations

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More on Electron Configurations
Identify the blocks on your periodic table. Each
block is named after its characteristic orbital;
thus, the blocks are:
He is in the S Block.
Shell number minus 1.
Shell number minus 2.
2.
Write the electron and orbital diagram
for Z = 20.
2. Write the electron configuration
and orbital diagram for Z = 20 Ca.
Valence Electrons (Lewis Dot
Structure) ā€“ are all eā€™ in the
outermost eā€™ shell (in the shell with
the highest shell number.
Ca
3. Write the condensed electron
configuration for Z = 20 Ca.
Last Noble Gas
[Ar]
4. Write the electron Configuration and
orbital diagram for Z = 26 Fe.
6
3d
5. Write the condensed electron
configuration for Z = 26 Fe.
S
Last Noble Gas
d
-1
-2
[Ar]
6
3d
6. Write the electron and orbital
diagram for Z = 38 Sr.
Valence Electrons
7. Write the condensed electron
configuration for Z = 38 Sr.
S
d
p
Last Noble Gas
7. Write the condensed electron
configuration for Z = 50 Sn.
S
d
p
Sn
Last Noble Gas
8. Write the condensed electron
configuration for Z = 6 C.
S
p
Last Noble Gas
Valence Electron
[He] 2s2 2p2
C
9. Write the condensed electron
configuration for Z = 31 Ga.
S
p
d
Last Noble Gas
Valence Electrons
Ga
[Ar]
4s2
3d10
4p1
10. Write the condensed electron
configuration for Z = 98 Cf Californium.
S
Last Noble Gas
f
-2
[Rn] 7s2 5f10
11. What element has the condensed
electron configuration [Ar] 4s1?
Last Noble Gas
Valence Electron
K
12. What element has the condensed
electron configuration [Xe] 6s2 4f14 5d4?
S
4f
d
f
Last Noble Gas
13. What element has the condensed
electron configuration [Ne] 3s2 3p2 ?
S
P
Last Noble Gas
Valence Electron
Si
14. What element has the condensed
electron configuration [Ne] 3s2 3p6 ?
S
P
Last Noble Gas
Valence Electron
Ar
15. What element has the condensed
electron configuration [Xe] 6s2 4f14 5d10?
S
d
f
Last Noble Gas
Valence Electrons
Draw the condensed electron configuration
and electron dot structures for:
1.Na
2.B
3.N
4.Cl
5.Kr
6. F
7. S
8. Ba
9. Mg
10. C
1. Na:
[Ne] 3s1
Na
2. B:
[He]
2s2
2p1
B
3. N:
[He]
2s2
2p3
N
4. Cl:
[Ne]
3s2
3p5
Cl
5. Kr:
[Ar]
4s2
3d10
4p6
Kr
6. F:
[He]
2s2
2p5
F
7. S:
[Ne]
3s2
3p4
S
8. Ba:
[Xe] 6s2
Ba
9. Mg:
[Ne] 3s2
Mg
10. C:
[He]
2s2
2p2
C

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