WorksheetsThe atom and electron configurations
Total questions: 15
Worksheet time: 23mins
Name
Class
Date
1.
What element has this orbital notation?
a)
lithium
b)
beryllium
c)
boron
d)
carbon
2.
What element has this electron configuration?
a)
boron
b)
carbon
c)
nitrogen
d)
oxygen
3.
Which element is represented by this orbital notation?
a)
carbon
b)
nitrogen
c)
oxygen
d)
fluorine
4.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
5.
Which of the following chemical species has the same electron configuration as an atom of argon, Ar?
a)
Mg2+
b)
Be2+
c)
O2-
d)
Cl-
6.
Energy levels are denoted by:
a)
letters
b)
numbers
c)
a combination of letters and numbers
d)
subscripts
7.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
8.
The valence electron for Li atom is located at which orbital?
a)
1s
b)
2s
c)
2p
d)
2d
9.
How many valence electrons does this configuration have?
1s22s22p63s23p64s23d104p6
a)
6
b)
8
c)
10
d)
16
10.
What is the abbreviated electron configuration for barium?
a)
[Xe] 6s2
b)
[Rn] 6s2
c)
[Ar] 4s2 3d10 4p5
d)
[He] 2s2 3p1
11.
What is this element?
[Ne] 3s23p64s2
[Ne] 3s23p64s2
a)
Calcium
b)
Sodium
c)
Scandium
d)
Titanium
12.
What element has the valence shell configuration
3s2 3p2
3s2 3p2
a)
Al
b)
B
c)
Si
d)
Ga
13.
Which is associated with more energy?
a)
2p
b)
2s
c)
3p
d)
1s
14.
How many electron can be found in a p orbital?
a)
2
b)
3
c)
4
d)
6
15.
What is the electronic configuration of iron?
a)
1s22s22p63s23p64s23d6
b)
1s22s22p63s23p63d8
c)
1s22p63s23p64s23d6
d)
1s22s22p63s23p64s13d6
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