Worksheets20-21 Electron Configuration Practice
Total questions: 22
Worksheet time: 42mins
Name
Class
Date
1.
[He]2s22p4 is the noble gas configuration for which element?
a)
oxygen
b)
sulfur
c)
phosphorus
d)
fluorine
2.
[Ne]3s23p1 is the noble gas configuration for which element?
a)
scandium
b)
boron
c)
nitrogen
d)
aluminum
3.
Which of the following shows a correct Lewis dot structure?
a)
b)
c)
d)
4.
Which element could X represent?
a)
iron
b)
Chlorine
c)
Silicon
d)
Oxygen
5.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
6.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
7.
What is the noble gas shorthand electron for Phosphorus atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p3
d)
[Na] 3s23p4
8.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
9.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
10.
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
11.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
12.
Electron arrangement that uses arrows
a)
Electron configuration
b)
Shorthand configuration
c)
Lewis dot structure
d)
Orbital diagram
13.
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
14.
How can you tell how many energy levels an atom has?
a)
APE MAN
b)
By the Group
c)
By the Period
d)
By the atomic mass
15.
What is the rule to follow when arranging electrons for a BOHR model of an atom?
a)
2-2-8
b)
2-8-10
c)
2-4-6-8
d)
2-8-8
16.
What is the noble gas configuration for Argon?
a)
[Ne]2s22p6
b)
[He]2s22p6
c)
[He]3s23p6
d)
[Ne]3s23p6
17.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
18.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
19.
Which element belongs to this longhand electron configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d7
1s2 2s2 2p6 3s2 3p6 4s2 3d7
a)
Calcium
b)
Cobalt
c)
Nickel
d)
Copper
20.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
21.
How many total electrons can be held in the third energy level of an atom?
a)
8
b)
18
c)
32
d)
12
22.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
100 %
