WorksheetsChemistry Test #3
Total questions: 22
Worksheet time: 24mins
Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
2.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
3.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
4.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
5.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
6.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
7.
What atom is represented here?
a)
Carbon
b)
Nitrogen
c)
Oxygen
d)
Fluorine
8.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
9.
How many electrons should Hydrogen have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
10.
How many electrons should Lithium have around its Lewis dot model?
a)
1
b)
2
c)
3
d)
4
11.
How many electrons should Helium have around its Lewis dot model?
a)
1
b)
2
c)
7
d)
8
12.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
13.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
14.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
15.
In a neutral atom, what needs to be true?
a)
The number of protons and neutrons are the same
b)
The number of protons and electrons are the same
c)
The number of neutrons and electrons are the same
d)
None of the above
16.
Which of the following orbitals cannot exist?
a)
3d
b)
3f
c)
6d
d)
6s
17.
The principle that states that an electron always occupies the lowest energy level first is:
a)
Hund's Rule
b)
Aufbau principle
c)
Quantum Rule
d)
Heisenberg Principle
18.
Hund’s rule states…
a)
Atomic orbitals have opposite spins and 2 electrons each
b)
Electrons occupy orbitals of highest energy first and energy level changes as you go up
c)
Electrons occupy orbitals of lowest energy first, starting with 1s
d)
Fill orbitals of the same energy with one electron, then go back and pair them up if you have extra electrons
19.
What is the Pauli Exclusion Principle?
a)
An atomic orbital can only hold a maximum of 2 electrons, each with opposite spins
b)
An atomic orbital can hold a minimum of 6 electrons, each with opposite spins
c)
An atomic orbital can hold a maximum of 6 electrons, each with the same spin
d)
An atomic orbital can hold a minimum of 2 electrons, each with opposite spins
20.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
21.
Where do start when writing electron configuration the short way
a)
alkaline metals
b)
transition metals
c)
noble gases
d)
halogens
22.
write the abbreviated electron config for Strontium (Sr)
a)
[kr] 3s2
b)
[kr] 4s2
c)
[kr] 5s2
d)
[ar] 5s2
100 %
