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Unit 3: Electron Configuration

Total questions: 96

Worksheet time: 2hrs 47mins

Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
What atom matches this electron configuration?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
3.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s23p64s23d104p5

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.
What is this element?
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
6.

Which electron configuration belongs to chlorine (Cl)?

a)

1s2 2s2 2p6 3s2 3p5

b)

1s2 2s2 2p6 3s2 3p6

c)

1s2 2s2 2p6 3s2 3p7

7.

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

8.

What is the shorthand electron configuration for sulfur atom?

a)

[Ar] 3p4

b)

[He] 3s23p4

c)

[Ne] 3s23p4

d)

[Na] 3s23p3

9.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
10.
What is the noble gas shorthand electron for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p4
11.

Which of the following has the smallest atomic radius?

a)

K

b)

Na

c)

Li

d)

Cs

12.
How many valence electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
13.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
14.
Where are the metalloids / semimetals located on the periodic table?
a)
Blue
b)
Red
c)
Green
15.
Cations are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
16.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
17.
How many unpaired electrons would lithium have?
a)
1
b)
2
c)
3
d)
0
18.

What is this element?

1s22s22p63s23p64s23d104p6

a)

Argon

b)

Krypton

c)

Selenium

d)

Bromide

19.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
20.

How many valence electrons does chlorine have?

a)

5

b)

2

c)

7

d)

5

21.
How many valence electrons does phosphorus have?
a)
5
b)
2
c)
8
d)
15
22.
What noble gas should be used to write the shorthand configuration for Te?
a)
Ar
b)
Kr
c)
Xe
d)
Sb
23.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
24.

Which atom has the largest atomic radius?

a)

potassium

b)

rubidium

c)

francium

d)

cesium

25.
Which periodic group has the smallest atomic radius?
a)
Alkali metals
b)
Halogens
c)
Noble Gases
d)
Transition metals
26.

Which one has the largest radius?

a)

Lithium

b)

Boron

c)

Neon

d)

Nitrogen

27.
Which element has the greater ionization energy?
a)
Magnesium
b)
Phosphorus
28.

Which element has the lower ionization energy?

a)

Cesium

b)

Chlorine

29.
Which element has the greater ionization energy?
a)
Fluorine
b)
Bromine
30.

Which element has the lower ionization energy?

a)

Strontium

b)

Boron

31.
What is ionization energy?
a)
Energy needed to destroy an atom
b)
Energy required to remove an electron
c)
Energy needed to split an electron
d)
Energy required to add an electron
32.

Which has the greater electronegativity:

Cl or Al?

a)

Cl

b)

Al

33.

Which has the lowest electronegativity:

N or C?

a)

C

b)

N

34.

Which has the greater electronegativity:

H or F?

a)

H

b)

F

35.

Put these in increasing order from lowest to highest electronegativity:

fluorine, nitrogen, and boron.

a)

B < N < F

b)

B < F < N

c)

N < F < B

d)

F < N < B

36.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
37.

Which elements are to the right of the zig zag?

a)

metals

b)

nonmetals

c)

metalloids

38.

Sulfur is considered:

a)

malleable

b)

brittle

c)

ductile

d)

a good conductor

39.

Which elements are to the LEFT of the zigzag?

a)

metals

b)

nonmetals

c)

metalloids

40.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
41.
Non-metals are good conductors of heat and electricity. 
a)
TRUE
b)
FALSE
42.

Order the following in increasing metallic characteristics:

Ra, Be, Ca, Rb

a)

Ra, Be, Rb, Ca

b)

Rb,Ca, Be, Ra

c)

Ra, Rb, Ca, Be

d)

Be, Ca, Rb, Ra

43.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
44.
Name group 18 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
transition metals
d)
noble gases
45.
Name group 1 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
d)
halogens
46.
Name group 2 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
d)
transition metals
47.
Name groups 3 - 12 on the periodic table.
a)
noble gases
b)
halogens
c)
metalloids
d)
transition metals
48.
Name group 17 on the periodic table.
a)
transition metals
b)
metalloids
c)
halogens
d)
alkali metals
49.
What do the numbers down the side tell us about the atoms in each row?
a)
number of protons
b)
number of electrons
c)
number of energy levels
d)
absolutely nothing
50.
Which statement is true about the alkaline earth metal family?
a)
They have 2 valence electrons.
b)
They are found on the right side of the periodic table.
c)
They form -2 charges.
d)
They tend to gain valence electrons.
51.
The family of elements that have one valence electron is the:
a)
noble gas family
b)
halogen family
c)
alkaline earth metal family
d)
alkali metal family
52.
Which family of elements have 7 valence electrons?
a)
the alkali metal family
b)
the boron group
c)
the nitrogen group
d)
the halogen family
53.

How many valence electrons does oxygen have?

a)

8

b)

2

c)

16

d)

6

54.

How many valence electrons does hydrogen have?

a)

1

b)

2

c)

3

d)

4

55.

How many valence electrons does helium have?

a)

1

b)

2

c)

6

d)

8

56.

How many valence electrons does magnesium have?

a)

1

b)

2

c)

6

d)

8

57.

How many valence electrons does iodine have?

a)

1

b)

2

c)

7

d)

17

58.

Impossible to know exactly both the velocity and position of a particle at the same time

a)

Pauli Exclusion principle

b)

Heisenburg

c)

Ground state

d)

Quantum

59.

Electrons remain unpaired as long as possible.

a)

Mendelev

b)

Hund's rule

c)

Bohr's law

d)

Pauli Exclusion

60.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
61.
How many electrons can the s sublevel hold?
a)
14
b)
10
c)
2
d)
6
62.
The maximum number of electrons that can be placed in an f orbital.  
a)
2
b)
6
c)
10
d)
14
63.

What is the correct configuration for lead?

a)

[Rn] 6s2 5d10 4f14 6p2

b)

[Xe] 6s2 6d10 6p2

c)

[Xe] 6s2 5d10 6p2

d)

[Xe] 6s2 4f14 5d10 6p2

64.
Each orbital will hold ____ electrons
a)
5
b)
4
c)
8
d)
2
65.
How many orbitals in the d subshell? 
a)
1
b)
7
c)
3
d)
5
66.
Which principle states that we cannot know the location AND momentum of an electron simultaneously?
a)
Bohr
b)
Hesienberg
c)
Shrodinger
d)
Einstein
67.
What orbital shapes are found at the 2nd energy level
a)
s only
b)
s and p
c)
s, p, d and f
d)
p only
68.
What is the maximum number of electrons that could be at the 2nd energy level?
a)
1
b)
2
c)
8
d)
16
69.

What is the maximum number of electrons that could be at the 3rd energy level?

a)

1

b)

2

c)

8

d)

18

70.

What is the maximum number of electrons that could be at the 1st energy level?

a)

1

b)

2

c)

8

d)

18

71.

How many valence electrons does aluminum have?

a)

1

b)

2

c)

3

d)

13

72.
How are covalent bonds explained?
a)
When one atom takes the other atom's electron
b)
When the atom shares an electron with an another atom
c)
When the two nucleus merge
d)
When the neutrons leave the nucleus
73.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
74.
This "rule" of Quantum Chemistry states that no 2 electrons in an atom can be in the exact same state...each electron in an atom can be described by a unique set of quantum numbers.
a)
Hund's Rule
b)
Heisenberg Uncertainty Principle
c)
Aufbau Principle
d)
Pauli Exclusion Principle
75.
How many unpaired electrons are in an atom of strontium? (atomic number 38)
a)
0
b)
1
c)
2
d)
3
76.
How many unpaired electrons are in an atom of germanium? (atomic #32)
a)
2
b)
3
c)
4
d)
5
77.

Which quantum number tells you the size of the atom?

a)

principle

b)

azimuthal

c)

magnetic

d)

spin

78.

Which quantum number tells you the direction in which the electrons are traveling and can also represent the electrons with arrows or +1/2, -1/2?

a)

principle

b)

azimuthal

c)

magnetic

d)

spin

79.

Which quantum number tells you the sub levels of the main energy levels?

a)

principle

b)

azimuthal

c)

magnetic

d)

spin

80.

Which of the following will form a cation?

a)

magnesium

b)

helium

c)

sulfur

d)

oxygen

81.

Which of the following will form an anion?

a)

aluminum

b)

neon

c)

sulfur

d)

silver

82.

Which of the following pairs would form an ionic bond?

a)

potassium and sodium

b)

helium and lithium

c)

aluminum and oxygen

d)

sulfur and oxygen

83.

Which of the following pairs would form a covalent bond?

a)

potassium and sodium

b)

helium and lithium

c)

aluminum and oxygen

d)

sulfur and oxygen

84.

Which of the following has a larger atomic radius?

a)

silver atom

b)

silver ion

85.

Which of the following has a larger atomic radius?

a)

nitrogen atom

b)

nitrogen ion

86.

Who published the first periodic table?

a)

Mendeleev

b)

Moseley

c)

Einstein

d)

Planck

87.

Who used x-rays to develop the Periodic Law?

a)

Mendeleev

b)

Moseley

c)

Einstein

d)

Planck

88.

Who suggested that hot objects emit energy in small amounts called Quanta?

a)

Mendeleev

b)

Moseley

c)

Einstein

d)

Planck

89.

Who stated that electromagnetic radiation had wavelike properties, and particles "stream" and each particle of light carries a certain quanta of energy?

a)

Mendeleev

b)

Moseley

c)

Einstein

d)

Planck

90.

Who developed an equation that treated electrons as waves?

a)

DeBroglie

b)

Einstein

c)

Schrodinger

d)

Planck

91.

Who stated that electrons travel a specific distance from the nucleus like planets orbiting the sun?

a)

Bohr

b)

Einstein

c)

Schrodinger

d)

Planck

92.

Who Investigated the photoelectric effect and determined that electrons had wave-like behavior gave them a certain frequency?

a)

DeBroglie

b)

Einstein

c)

Schrodinger

d)

Planck

93.

Which of the following is electronically perfect?

a)

hydrogen

b)

helium

c)

arsenic

d)

titanium

94.

How many electrons can the second energy level hold?

a)

1

b)

2

c)

8

d)

18

95.

How many electrons can the 3rd energy level hold?

a)

1

b)

2

c)

8

d)

18

96.

How many energy levels do you need to accurately draw scandium

a)

1

b)

2

c)

3

d)

4

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