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WorksheetsElectron Confi
Total questions: 27
Worksheet time: 27mins
Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
2.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
3.
What is the electron configuration for a Sulfur atom?
a)
1s22s22p63p6
b)
1s22s22p63s23p6
c)
1s22s22p63s23p4
d)
3p4
4.
What atom matches this electron configuration?
1s22s22p63s33p64s23d104p65s24d105p66s24f145d9
1s22s22p63s33p64s23d104p65s24d105p66s24f145d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
5.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
6.
Which of the following is the smallest in size?
a)
N
b)
S
c)
I
d)
Fr
7.
Which of the following is the smallest in size?
a)
K
b)
Na
c)
Li
d)
Cs
8.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
9.
How many valence electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
10.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
11.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
12.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
13.
The electron configuration of an atom is 1s22s22p6. The number of valence electrons in the atom is
a)
3
b)
6
c)
8
d)
10
14.
What atom is represented here?
a)
Carbon
b)
Nitrogen
c)
Oxygen
d)
Fluorine
15.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
16.
What is the electron configuration for this atom?
a)
1s22s22p6
b)
1s22s22p5
c)
1s22s22p3
d)
2s22p3
17.
What is the highest occupied energy level?
a)
1
b)
2
c)
3
d)
4
18.
What is the highest occupied energy level?
a)
4
b)
5
c)
6
d)
7
19.
How many valence electrons are there?
a)
1
b)
2
c)
8
d)
79
20.
How many orbitals are in the 4s sublevel?
a)
1
b)
2
c)
3
d)
4
21.
How many orbitals are in the 4p sublevel?
a)
2
b)
3
c)
4
d)
6
22.
How many orbitals are in the 4d sublevel?
a)
2
b)
4
c)
5
d)
10
23.
How many orbitals are in the 4f sublevel?
a)
2
b)
4
c)
7
d)
14
24.
After filling 5s, electrons would fill...
a)
5p
b)
4d
c)
5d
d)
3f
25.
After filling 6s, electrons would fill
a)
4f
b)
5d
c)
6p
d)
7g
26.
How many unshared pairs of electrons are in this orbital diagram? (click to see image?
a)
2
b)
3
c)
5
d)
15
27.
How many unshared pairs of electrons are in this orbital diagram? (click to see image)
a)
2
b)
4
c)
6
d)
8
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