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Chemistry - Semester 1 Final Exam Review

Total questions: 70

Worksheet time: 50mins

Name
Class
Date
1.

What determines the identity of an atom?

a)

number of protons

b)

number of electrons

c)

number of neutrons

d)

number of valence electrons

2.

The particles in an atom that are neutral (have no charge) are called __________.

a)

negatrons

b)

electrons

c)

neutrons

d)

protons

3.
Protons have a _____ charge while electrons have a _____ charge.
a)
positive; negative
b)
negative; positive
c)
neutral; positive
d)
negative; neutral
4.

If a neutral atom has 3 electrons, how many protons does it have?

a)

7

b)

6

c)

4

d)

3

5.

An atom will be neutral (have no charge) if the number of protons is equal to the number of _____.

a)

protons

b)

neutrons

c)

electrons

d)

octets

6.

How many protons does an atom with an atomic number of 6 have?

a)

6

b)

12

c)

3

d)

cannot be determined

7.

What does the 1.00794 stand for?

a)

hydrogen

b)

atomic number

c)

atomic mass

d)

valence electrons

8.

What is the atomic mass for silicon?

a)

16

b)

32

c)

28

d)

14

9.

How many protons does Cu have?

a)

42

b)

29

c)

58

d)

25

10.

What is the atomic mass of copper?

a)

64

b)

29

c)

35

d)

63

11.
What charge will an atom have if it loses 2 electrons?
a)
+2
b)
-2
c)
0
d)
+1
12.
What charge will an atom have if it gains one electron?
a)
-1
b)
+1
c)
1
13.
An atom undergoes radioactive decay and its mass decreases from 138 to 134. What type of decay did the atom undergo?
a)
alpha
b)
beta
c)
gamma
d)
radioactive
14.
What does an atom lose when it undergoes alpha decay?
a)
2 protons and 2 neutrons
b)
a neutron becomes a proton
c)
2 protons
d)
an electron
15.

Which element is in period 1, group 8?

a)

Helium

b)

Hydrogen

c)

Neon

d)

Lanthanum

16.

Which element is in period 3, group 4?

a)

Silicon

b)

Gallium

c)

Carbon

d)

Germanium

17.
Which element in period 2 is the most reactive?
a)
Ne
b)
F
c)
Be
d)
N
18.
What charge will magnesium have once it reaches an octet?
a)
+2
b)
-2
c)
+12
19.
What charge will nitrogen have once it reaches an octet?
a)
-3
b)
+3
c)
-5
d)
+5
20.

Metals are found on which side of the stairs?

a)

left

b)

right

c)

along the stairs

21.

Which of the following is a nonmetal?

a)

Na

b)

Pb

c)

S

d)

Al

22.

What type of bond forms between nonmetals only?

a)

covalent

b)

ionic

c)

metallic

d)

metalloid

23.

What type of bond forms between H and Br?

a)

metallic

b)

ionic

c)

covalent

d)

metalloid

24.

What type of bond forms between Na and O?

a)

ionic

b)

covalent

c)

metallic

d)

metalloid

25.

Which of the following has a metallic bond?

a)

MgBr2

b)

PbI2

c)

CH4

d)

4 Mg

26.

Which of the following shows a metallic bond?

a)
b)
c)
d)
27.

Which of the following has an ionic bond?

a)
b)
c)
d)
28.

Which of the following have a covalent bonds?

a)
b)
c)
d)
29.

Rank the elements Mn, Ne, O, Si, and Sr from lowest to highest electronegativity.

a)

(low) Ne < Sr < Mn < Si < O (high)

b)

(low) Sr < Mn < Si < O < Ne (high)

c)

(low) O < Si < Mn < Sr < Ne (high)

d)

(low) Ne < O < Si < Mn < Sr (high)

30.

Which bond type has the largest difference in electronegativity between the two atoms involved?

a)

metallic bond

b)

covalent bond

c)

ionic bond

31.

What is the correct name for Mg2+?

a)

magnesium metal

b)

magnesium ion

c)

magnide

d)

magnesiumide

32.

What is the correct name for P3–?

a)

phosphorous ion

b)

phosphide

c)

phosphoride

d)

phosphorouside

33.

What is the name of the compound NaF?

a)

sodium fluoride

b)

sodium fluorine

c)

sodium monofluoride

d)

monosodium monofluoride

34.

What is the name of the compound P4H8?

a)

tetraphosphorous octahydride

b)

phosphorous hydride

c)

phosphorous hydrogen

d)

tetraphosphorous octahydrogen

35.

What is the name of the compound Ca3N2?

a)

tricalcium dinitrogen

b)

calcium nitride

c)

tricalcium trinitride

d)

calcium nitrogen

36.

What is the name of the compound PI3?

a)

phosphorous triiodide

b)

phosphorous triiodine

c)

monophosphorous triiodide

d)

monophosphorous triiodine

37.

What is the ionic formula of the compound formed between lithium and chlorine?

a)

LiCl

b)

Li1Cl1

c)

Li2Cl

d)

LiCl2

38.

What is the ionic formula of the compound formed between beryllium and fluorine?

a)

BeF2

b)

BeF

c)

Be2F

d)

Be3F2

39.

What is the ionic formula of the compound formed between aluminum and selenium?

a)

Al2Se3

b)

AlSe

c)

Al3Se2

d)

Al2Se

40.

Which bond type involves the stealing (transfer) of electrons?

a)

covalent

b)

metallic

c)

ionic

41.

Which bond type involves the sharing of electrons between two atoms?

a)

covalent

b)

metallic

c)

ionic

42.

Which bond type involves the sea of electrons?

a)

covalent

b)

metallic

c)

ionic

43.

Which bond is stronger?

a)

C=O

b)

C–O

44.

Which bond is stronger?

a)

S–H

b)

S–F

45.

What type of compound is 6 MgO?

a)

covalent

b)

ionic

c)

metallic

46.

What type of compound is 3 CH4?

a)

covalent

b)

ionic

c)

metallic

47.

What type of compound is 8 Be?

a)

covalent

b)

ionic

c)

metallic

48.

When atoms share valence electrons, a __________ bond is formed.

a)

covalent

b)

ionic

c)

metallic

49.

When atoms donate electrons to the sea of electrons, a __________ bond is formed.

a)

covalent

b)

ionic

c)

metallic

50.

When electrons are transferred between atoms, an __________ bond is formed.

a)

covalent

b)

ionic

c)

metallic

51.

What type of compound is shown above?

a)

covalent

b)

ionic

c)

metallic

52.

What type of compound is shown above?

a)

covalent

b)

ionic

c)

metallic

53.

What type of compound is shown above?

a)

covalent

b)

ionic

c)

metallic

54.

What is the correct formula for this compound?

a)

3 CH4

b)

C3H12

c)

CH4

d)

3 C4H

55.

What is the correct formula for this compound?

a)

Mg6O6

b)

6 MgO

c)

Mg2O2

d)

6 Mg6O6

56.

What is the correct formula for this compound?

a)

Be8

b)

Be2

c)

8 Be

d)

8 Be2+

57.

Which of the following have a low density?

a)
b)
c)
58.

Which of the following have a high density?

a)
b)
c)
59.

Which of the following are insoluble in water?

a)
b)
c)
60.

Which of the following have a high solubility in water?

a)
b)
c)
61.

Which of the following may or may not be soluble in water depending on the substance?

a)
b)
c)
62.

Which of the following can create electrolytes in water?

a)
b)
c)
63.

What is required in order for a substance to conduct electricity?

a)

free moving neutral atoms

b)

free moving charged particles

c)

protons

d)

electrons

64.

Which of the following can conduct electricity as a solid?

a)
b)
c)
65.

Which of the following cannot conduct electricity as a solid?

a)
b)
c)
66.

Which of the following will conduct electricity when dissolved in water?

a)
b)
c)
67.

Which substance in the table above is most likely a covalent compound?

a)

A

b)

B

c)

C

68.

Which substance in the table above would you use to make a phone-charging cable?

a)

A

b)

B

c)

C

69.

Which substance in the table above would become conductive when added to water?

a)

A

b)

B

c)

C

70.

Which substance in the table above could be used to make an oven-safe baking pan?

a)

A

b)

B

c)

C

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