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WorksheetsElectron Configuration
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
Bromine is found in which block?
a)
s
b)
p
c)
d
d)
f
2.
What atom matches this electron configuration?
1s22s22p63s23p63d104s2
1s22s22p63s23p63d104s2
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
3.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
4.
How many valence electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
5.
The electron configuration of an atom is 1s22s22p6. The number of valence electrons in the atom is
a)
2
b)
6
c)
8
d)
10
6.
What is the electron configuration for this atom?
a)
1s22s22p6
b)
1s22s22p5
c)
1s22s22p3
d)
2s22p3
7.
How many valence Electrons does Copper Have?
1s2 2s2 2p6 3s2 3p6 3d104s1
1s2 2s2 2p6 3s2 3p6 3d104s1
a)
1
b)
4
c)
10
d)
11
8.
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
d)
Groll Principle
9.
Which orbital has the least amount of energy?
a)
p orbital
b)
d orbital
c)
s orbital
d)
What is an orbital?
10.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
11.
How many axis's would a p subshell have?
a)
2
b)
1
c)
4
d)
3
12.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
13.
Given the 4 choices, which subshell is associated with the most energy?
a)
2p
b)
2s
c)
3p
d)
1s
14.
Identify the Electron Configuration for Aluminum (Al)
a)
1s2 2s2 2p6 3s2 3p1
b)
1s2 2s2 2p6 3s2 3p3
c)
1s2 2s2 2p6 3s2 4p1
15.
How many valence Electrons does Chlorine Have?
What subshells are the valence electrons? 1s2 2s2 2p6 3s2 3p5
What subshells are the valence electrons? 1s2 2s2 2p6 3s2 3p5
a)
5, p orbitals
b)
2, s orbitals
c)
7, s and p orbitals
d)
5, s orbital
16.
When an electron is most stable, it is in the:
a)
ground state
b)
excited state
c)
valence shell
d)
cloud
17.
Which would describe an electron that has gained energy and jumped to another shell?
a)
ground state
b)
excited state
c)
valence
d)
core
18.
What does Pauli exclusion principle state ?
a)
each electron occupies the lowest energy orbital available
b)
a maximum of two electrons can occupy a single atomic axis, but only if the electros have opposite spins
c)
single electrons electrons with the same spin must occupy each axis before additional electrons with opposite spins can occupy the same orbitals
19.
Group 18 of the periodic table contains nonreactive elements like helium, neon, and argon. The elements in this group are called:
a)
alkali metsls
b)
transition metals
c)
halogens
d)
noble gases
20.
Every element in the period table:
a)
has the same spectral lines
b)
has electrons in the same configurations
c)
has the same set of quantum numbers
d)
has a unique set of quantum numbers
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