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WorksheetsElectronConfig220
Total questions: 25
Worksheet time: 50mins
Name
Class
Date
1.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
2.
What is the maximum number of electrons that an orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
3.
Which element has the electron Configuration: [Xe]6s2 4f14 5d10
a)
Cd
b)
Hg
c)
Au
d)
Ag
4.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
5.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
6.
What is this element?
1s22s22p63s23p6
4s23d104p6
1s22s22p63s23p6
4s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
7.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
8.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
9.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
10.
How many valence electrons does Chlorine have?
a)
5
b)
2
c)
7
d)
5
11.
What element has the valence shell configuration
3s2 3p2
3s2 3p2
a)
Al
b)
B
c)
Si
d)
Ga
12.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
13.
What noble gas should be used to write the shorthand configuration for Te?
a)
Ar
b)
Kr
c)
Xe
d)
Sb
14.
Identify the element in Period 5 that has 1 valence electron?
a)
Rb
b)
Nb
c)
Ag
d)
Sb
15.
What element in Period 4 has 5 valence electrons?
a)
Zr
b)
As
c)
V
d)
Sb
16.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
17.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
18.
Which electron configuration belongs to Copper (Cu)?
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d8
b)
1s2 2s2 2p6 3s2 3p6 4s2 3d9
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d10
19.
In an electron configuration, what follows 4s?
a)
4p
b)
3d
c)
4s
d)
2f
20.
Which atom has 3 energy levels and 4 valence electrons?
a)
Carbon
b)
Lithium
c)
Silicon
d)
Aluminum
21.
How can you tell how many valence electrons an atom has?
a)
APE MAN
b)
By the Group
c)
By the Period
d)
By the atomic number
22.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
23.
What is the maximum number of electrons that an S orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
24.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
25.
What is the electronic configuration of iron?
a)
1s22s22p63s23p64s23d6
b)
1s22s22p63s23p63d8
c)
1s22p63s23p64s23d6
d)
1s22s22p63s23p64s13d6
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