WorksheetsQuantum theory and the atom
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
How many quantum numbers are needed to describe the energy state of an electron in an atom?
a)
1
b)
2
c)
3
d)
4
2.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
3.
The set of orbitals that are dumbbell shaped and directed along the x, y, and z axes are called
a)
d orbitals.
b)
p orbitals.
c)
f orbitals.
d)
s orbitals
4.
What is the electron configuration for nitrogen?
a)
1s2 2s2 2p3
b)
1s2 2s3 2p2
c)
1s2 2s3 2p1
d)
1s2 2s2 2p2 3s1
5.
If electrons in an atom have the lowest possible energies, the atom is in the
a)
ground state.
b)
inert state.
c)
excited state.
d)
radiation-emitting state.
6.
The statement that no two electrons in the same atom can have the same four quantum numbers is
a)
the Pauli exclusion principle.
b)
Hund's rule.
c)
Bohr's law.
d)
the Aufbau principle.
7.
Name the path electron travel around the nucleus.
a)
Ring
b)
space
c)
orbit
8.
The number given to orbit
a)
quantum number
b)
orbit number
c)
electron number
9.
If an electron moves from lower energy level to higher energy level it is called
a)
ground state
b)
excited state
c)
neutral state
10.
The number of orbitals in p sub level
a)
2
b)
3
c)
4
11.
Number of electrons present in each orbital
a)
2
b)
3
c)
4
12.
The shape of the s sub level
a)
spherical
b)
dumb bell
c)
traingular
13.
The number of orbitals in d sub level
a)
2
b)
5
c)
8
14.
Which is the electron configuration for an oxygen atom?
a)
1s22s22p63s23p64s2
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p6
15.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
16.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
17.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
18.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
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.
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
100 %
