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WorksheetsElectron Configuration
Total questions: 35
Worksheet time: 1hrs 28mins
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.
Which is the electron configuration for an oxygen atom?
a)
1s22s22p63s23p64s2
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p6
3.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
4.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
5.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
6.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
7.
What is this element?
1s22s22p63s23p6
4s23d104p6
1s22s22p63s23p6
4s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
8.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
9.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
10.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
11.
How many valence electrons does Chlorine have?
a)
5
b)
2
c)
7
d)
5
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.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
17.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
18.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
19.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
20.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
21.
This is the correct dot diagram for sodium (Na)
a)
true
b)
false
22.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
23.
What are valence electrons?
a)
The innermost electrons
b)
The outermost electrons
24.
What is the octet rule?
a)
Elements can only have 8 electrons in its outermost shell
b)
The elements must form an octopus like structure
25.
How many valence electrons does Carbon have
a)
1
b)
4
26.
Electron dot notation is . . . .
a)
A representation of an element in which only valence electrons of an atom are shown
b)
A representation of how compounds are formed.
27.
How many electrons should Helium have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
28.
Which of the elements in the picture has correct electron dot notation?
a)
1
b)
2
c)
3
d)
4
29.
There are 4 different types of subshells (orbitals) s,p,d,f.
a)
true
b)
false
30.
Which periodic table family could have electrons filling orbitals in the s-block?
a)
Alkaine Earth
b)
Halogens
c)
Noble Gases
d)
Transition Metals
31.
Which periodic family would have electrons in the f-block?
a)
Transition metals
b)
Rare Earth Elements (Inner Transitions Metals)
c)
Alkali Metals
d)
Halogens
32.
What is the noble gas configuration for Sulfur?
a)
[Ar] 3p4
b)
[He] 3s2 3p4
c)
[Ne] 3s2 3p4
d)
[Na] 3s2 3p4
33.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
34.
Which element is depicted from this orbital diagram
a)
Fluorine
b)
Neon
c)
Chlorine
d)
Argon
35.
This orbital diagram represents:
a)
C
b)
B
c)
N
d)
O
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