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Unit 3- Electrons and the Periodic Table Review

Total questions: 113

Worksheet time: 2hrs 39mins

Name
Class
Date
1.

Which of the elements in the picture has correct Lewis dot structure?

a)

1

b)

2

c)

3

d)

4

2.

How many valence electrons does Hydrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

3.

How many valence electrons does Helium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

4.

How many valence electrons does Nitrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

5.

How many valence electrons does Magnesium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

6.

How many valence electrons does Aluminum Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

7.

How many valence electrons does Phosphorus Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

8.

How many valence electrons does Silicon Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

9.

How would you draw a Lewis dot diagram for Magnesium?

a)
b)
c)
d)
10.

How many valence electrons does this atom have?

a)

2

b)

3

c)

5

11.
a)
2
b)
8
c)
3
d)
13
12.
a)
2
b)
3
c)
5
13.
a)
12
b)
7
c)
8
d)
14
14.
a)
7
b)
8
c)
9
d)
10
15.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

16.

Is this the correct Lewis Dot Structure for Boron?

a)

Yes

b)

No, missing electrons

c)

No, too many electrons

d)

No, dots are in wrong place.

17.

Is this correct way to draw the Lewis Dot Structure for Carbon?

a)

Yes

b)

No, too many electrons

c)

No, not enough electrons

d)

No, dots are in wrong places

18.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

19.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

20.

This is a correct dot diagram for carbon (C)

a)

true

b)

false

21.

This is a correct dot diagram for nitrogen (N)

a)

true

b)

false

22.

Which ones are acceptable?

a)
b)
c)
23.
How many valence electrons are found in atoms of group 14?
a)
4
b)
3
c)
14
d)
16
24.
Which group has the greatest number of valence electrons?
a)
1
b)
14
c)
18
d)
16
25.
How many valence electrons are found in atoms of group 15?
a)
4
b)
5
c)
2
d)
3
26.
How many valence electrons are found in atoms of group 1?
a)
7
b)
6
c)
4
d)
1
27.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

28.

How many valence electrons does Oxygen have?

a)

4

b)

5

c)

6

d)

7

e)

8

29.

How many valence electrons does Phosphorus have?

a)

4

b)

5

c)

6

d)

7

e)

8

30.

How many valence electrons does Chlorine have?

a)

4

b)

5

c)

6

d)

7

e)

8

31.

Atoms from family IIA on the Periodic Table are likely to form ions of what charge?

a)

+1

b)

+2

c)

0

d)

−1

e)

−2

32.

Atoms from family VIA on the Periodic Table are likely to form ions of what charge?

a)

+1

b)

+2

c)

0

d)

−1

e)

−2

33.
Potassium ion
a)
Na⁺
b)
K⁺
c)
K²⁺
d)
K⁻
34.
Sodium ion
a)
Na²⁺
b)
K²⁺
c)
Li⁺
d)
Na⁺
35.
Aluminium ion
a)
Al²⁺
b)
Al³⁺
c)
Al⁺
d)
Al⁴⁺
36.
Hydrogen ion
a)
H⁺
b)
H⁻
c)
H²⁺
d)
H²⁻
37.

The Lewis Dot structure for aluminum would have ______ dots.

a)

13

b)

3

c)

8

d)

27

38.

Which of the following best describes the correct arrangement of the electrons in a Lewis dot structure for phosphorus?

a)

five single electrons

b)

two pairs of electrons and one single electron

c)

three pairs of electrons and one single electron

d)

three single electrons and one pair of electrons

39.

Look at the periodic table. What should be the charge on the ion formed by calcium?

a)

+1

b)

+2

c)

-1

d)

-2

40.

Anions have

a)

gained electrons.

b)

lost electrons.

c)

gained protons.

d)

lost protons.

41.

Which of the following groups on the Periodic Table will only form ions with positive charges?

a)

Group 2

b)

Group 15

c)

Group 17

d)

Group 18

42.

What is a cation?

a)

A negatively charged ion

b)

An atom with no charge

c)

A positively charged ion

d)

A stable atom on the periodic table

43.

What is an anion?

a)

A negatively charged ion

b)

An atom with no charge

c)

A positively charged ion

d)

A stable atom found on the periodic table

44.

What ion will this atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

45.

What ion will this atom form?

a)

3-

b)

2+

c)

1+

d)

1-

e)

2-

46.

What ion will this atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

47.

What ion will this atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

48.

What ion will this atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

49.

What ion will this atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

50.

What ion will this atom form?

a)

1+

b)

2+

c)

3+

d)

1-

e)

2-

51.

What ion will this mystery atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

52.

What ion will this mystery atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

53.

What ion will this mystery atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

54.

What ion will this mystery atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

55.

What ion will this mystery atom form?

a)

3-

b)

2+

c)

3+

d)

1-

e)

2-

56.

What is the ion formed from Sulfur?

a)

S+2

b)

S-2

c)

S+6

d)

S-6

57.

How many electrons would a Calcium ion gain/lose?

a)

lose 1

b)

gain 1

c)

lose 2

d)

gain 2

58.

How many electrons would a Nitrogen ion gain/lose?

a)

lose 5

b)

gain 5

c)

lose 3

d)

gain 3

59.

If an atom loses electrons, the charge will be positive.

a)

true

b)

false

60.

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

a)

Br-1

b)

Br+1

c)

Br+7

d)

Br-7

61.
What is a Rubidium ion's symbol?
a)
Rb-
b)
Rb+
c)
Rb-2
d)
Rb+2
62.
What is the ionic symbol for Selenium?
a)
Se-2
b)
Se+2
c)
Se-3
d)
Se+3
63.

When an atom loses a valence electron, it becomes a(n) _____________ ion.

a)

positive

b)

negative

c)

neutral

64.

When an atom gains a valence electron, it becomes a(n) _____________ ion.

a)

positive

b)

negative

c)

neutral

65.
What is the charge of an atom that has gained one electron?
a)
-1
b)
-2
c)
+1
d)
+2
66.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
67.
Group 17 always has ions with a charge of 
a)
+1
b)
+2
c)
-1
d)
-2
68.
If an element has 3 valence electrons, what charge will likely form on its ion ?
a)
+3
b)
+5
c)
-3
d)
-5
69.
What charge will an Oxygen ion have? 
a)
+1
b)
-1
c)
+2
d)
-2
70.
charge of beryllium ion
a)
-2
b)
-1
c)
+1
d)
+2
71.
How many electrons will a neutral potassium atom lose to become stable?
a)
1
b)
2
c)
8
d)
7
72.
Will a neutral phosphorus atom gain or lose electrons to become stable?
a)
gain
b)
lose
c)
neither
73.
Will a neutral potassium atom gain or lose electrons to become stable?
a)
gain
b)
lose
c)
neither
74.
Will a neutral neon atom gain or lose electrons to become stable?
a)
gain
b)
lose
c)
neither
75.

Most elements are most stable when their outermost energy levels contain ________ electrons.

a)

2

b)

6

c)

8

d)

18

76.

Which of the following elements is an exception to the octet rule?

a)

helium

b)

oxygen

c)

chlorine

d)

magnesium

77.

A student is answering the question "What charge ion does Aluminum form?"


The student's answer is "Aluminum forms a 3 ion"


What is the error in the student's answer?

a)

There is no error, his answer is correct

b)

He did not say that the ion was positive

c)

He did not say that the ion was negative

d)

Aluminum does not form an ion with a charge of +3 or -3

78.
An atom that has gained or lost electrons is called ...
a)
a winner
b)
an isotope
c)
an ion
d)
a loser
79.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
80.
What element is this?  What is the mass number of this atom?
a)
sodium, 23
b)
magnesium, 23
c)
magnesium, 12
d)
sodium, 11
81.
Which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
82.
What is the charge on a lithium atom that looses 1 electron?
a)
+1
b)
0
c)
-1
d)
-2
83.
What is the net charge on the element shown above? 
(Calcium - atomic number 20)
a)
cation +1 charge
b)
cation +2 charge
c)
anion -1 charge
d)
anion -2 charge
84.
An ion of Chlorine gains one extra electron (-1). What is its new charge? 
a)
-1
b)
+1
c)
+2
d)
-2
85.
An ion of Sodium loses one electron (-1). What is its new charge? 
a)
-1
b)
+1
c)
-2
d)
+2
86.
An ion has 3 protons (+) and 5 electrons (-). What is its total charge? 
a)
+8
b)
-8
c)
+2
d)
-2
87.
Nonmetals tend to 
a)
gain electrons
b)
lose electrons
88.
When a nonmetal gains electrons, it becomes this type of ion.
a)
Anion
b)
Cation
89.
When a metal loses electrons, it becomes this type of ion.
a)
anion
b)
cation
90.
Where are the non-metals located on the periodic table?
a)
All over
b)
On the left side of the "staircase"
c)
On the right side of the "staircase"
91.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

92.

What are the elements in group 18 (the far right) of the periodic table called?

a)

Alkali metals

b)

Alkaline earth metals

c)

Halogens

d)

Noble gases

93.

What are the elements in group 1 (the far left) of the periodic table called?

a)

Alkali metals

b)

Alkaline earth metals

c)

Halogens

d)

Noble gases

94.

What are the elements in group 17 of the periodic table called?

a)

Alkali metals

b)

Alkaline earth metals

c)

Halogens

d)

Noble gases

95.

What are the elements found along the "staircase" called? They have properties of both metals and non-metals.

a)

Metalloids

b)

Non-metals

c)

Transition metals

d)

Metals

96.

The horizontal rows on the periodic table are called:

a)

Shells

b)

Periods

c)

Groups

d)

Horizontals

97.

The vertical columns on the periodic table that have common properties are called

a)

Groups

b)

Periods

c)

Shells

d)

Valences

98.

Which of the following contains elements with 7 valence electrons?

a)

Alkali metals

b)

Alkali earth metals

c)

Halogens

d)

Noble gases

99.

Which of the following contains elements with 1 valence electron?

a)

Alkali metals

b)

Alkali earth metals

c)

Halogens

d)

Noble gases

100.

Which of the following contains elements that form an ion with a +2 charge?

a)

Alkali metals

b)

Alkali earth metals

c)

Halogens

d)

Noble gases

101.

Which of the following contains elements that do not form ions?

a)

Alkali metals

b)

Alkali earth metals

c)

Halogens

d)

Noble gases

102.

Which of the following contains elements that form cations?

a)

Alkali metals

b)

Alkali earth metals

c)

Halogens

d)

Noble gases

103.

Choose the TWO most reactive families on the periodic table with correct reasoning.

a)

Alkali metals because they only need to lose 1 valence electron

b)

Noble gases because they have full valence electron shells

c)

Halogens because they only need to gain 1 valence electron

d)

Halogens because they only need to lose 1 valence electron

e)

Alkali metals because they only need to gain 1 valence electron

104.
According to the Periodic Table of the Elements, which set of elements has similar properties?
a)
H, C, I
b)
He, H, Al
c)
He, Ne, Ar
d)
Na, Ca, Al
105.

Which of the following elements is most likely a poor conductor of electricity?

a)

Beryllium (Be)

b)

Gold (Au)

c)

Phosphorus (P)

d)

Copper (Cu)

106.

Which of the following is LEAST reactive?

a)

Iodine

b)

Fluorine

c)

Chlorine

d)

Bromine

107.

Which of the following is most reactive?

a)

Cesium

b)

Calcium

c)

Sodium

d)

Beryllium

108.

Which of the following statements is true?

a)

Alkali metals are more reactive than Alkali Earth metals because they only need to lose 1 electron to have a completed octet

b)

Alkali metals are less reactive than Alkali Earth metals because they only need to lose 1 electron to have a completed octet

c)

Halogens are more reactive than other nonmetals because they only need to gain 1 electron to have a completed octet

d)

Halogens are less reactive than other nonmetals because they only need to gain 1 electron to have a completed octet

109.

How many protons and neutrons does the Gallium ion contain?

a)

31 protons

31 electrons

b)

31 protons

28 electrons

c)

31 protons

34 electrons

110.

How many protons and neutrons does the Selenium ion contain?

a)

34 protons

34 electrons

b)

34 protons

36 electrons

c)

34 protons

32 electrons

111.

How many protons and neutrons does the Iodine ion contain?

a)

53 protons

53 electrons

b)

53 protons

52 electrons

c)

53 protons

54 electrons

112.

How many protons and neutrons does the Cesium ion contain?

a)

55 protons

55 electrons

b)

55 protons

54 electrons

c)

55 protons

56 electrons

113.

How many protons and neutrons does the Strontium ion contain?

a)

38 protons

38 electrons

b)

38 protons

40 electrons

c)

38 protons

36 electrons

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