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Mid-Unit Chemistry Test Review

Total questions: 58

Worksheet time: 30mins

Name
Class
Date
1.

What is the formula for density?

a)

Density = Volume/Mass

b)

Density = Mass/Volume

c)

Density = Mass-Volume

d)

Density = Volume-Mass

2.

In what phase of matter are particles (atoms or molecules) spread apart, and can change shape and volume

a)

Solid

b)

Liquid

c)

Gas

d)

None of the above

3.

Where is the atomic mass located?

a)

What is the atomic mass?

b)

Below the Elemental Symbol (O)

c)

Above the Elemental Symbol (O)

d)

What is Oxygen?

4.

How do you calculate how many Neutrons are in a Nucleus?

a)

You don't

b)

Atomic Mass/Atomic Number

c)

Atomic Number - Atomic Mass

d)

Atomic Mass - Atomic Number

5.

Where do you find the Electrons of an atom if this is a Neutral atom?

a)


Above the Elemental Symbol (O)

b)

Below the Elemental Symbol (O)

c)

What is the atomic number?

d)

What is Oxygen?

6.

How many Electrons can be held in the 1st Orbital Shell of an Atom

a)

8

b)

2

c)

18

d)

0

7.

How many Electrons can be held in the 2nd Orbital Shell of an Atom

a)

8

b)

2

c)

18

d)

0

8.

How many Electrons can be held in the 3rd Orbital Shell of an Atom

a)

8

b)

2

c)

18

d)

0

9.

How many valence electrons are in Noble Gases?

a)

8

b)

2 for He

8 for the rest

c)

8 for He

2 for Ne

8 for rest

d)

2 for Ne

8 for rest

10.

Is Rust a Chemical or Physical Property?

a)

Chemical Property

b)

Physical Property

11.

Is Conductivity a Chemical or Physical Property?

a)

Chemical Property

b)

Physical Property

12.

What is the definition of malleability?

a)

the ability to be stretched into a thin wire

b)

the ability to be hammered into a thin sheet

c)

measure of a material's ability to conduct an electric current

d)

anything that has mass and volume

13.

What is the definition of ductility?

a)

the ability to be stretched into a thin wire

b)

the ability to be hammered into a thin sheet

c)

measure of a material's ability to conduct an electric current

d)

anything that has mass and volume

14.

Atoms of the same element always have the same number of which subatomic particle in their nucleus?

a)

Neutrons

b)

Protons

c)

Positive Ions

d)

Valence Electrons

15.

In a neutral atom, what two subatomic particles equal each other?

a)

Neutrons and Protons

b)

Protons and Neutrons

c)

Electrons and Protons

d)

Electrons and Neutrons

16.

Who was the scientist to first organize the elements in the periodic table?

a)

Henry Moseley

b)

Mrs. Gibson

c)

Dmitri Mendeleev

d)

Ms. Verploegen

17.

The periodic table was arranged by atomic mass before it was rearranged by ______________.

a)

atomic mass

b)

neutrons

c)

atomic number

d)

electrons

18.

Elements in the same column have similar properties because they have the same number of ____________________

a)

electrons

b)

protons

c)

valence electrons

d)

orbitals

19.

Define Mass

a)

anything that has mass and volume

b)

anything that takes up space

c)

amount of matter contained in a substance

d)

amount of space an object occupies

20.

What happens to the molecules when a solid is being heated?

a)

Nothing will happen to the molecule

b)

The molecules will begin to more faster

c)

The molecules will begin to more slower

d)

The molecules will begin to increase in density

21.

The atomic number of an element tells you the atom's ____________

a)

Mass

b)

Number of neutrons and protons in a neutral atom

c)

Number of protons and electrons in a neutral atom

d)

Volume

22.

What is the smallest unit of an element that retains the properties of that element?

a)

Neutron

b)

Proton

c)

Atom

d)

Electron

23.

How to you identify an element?

a)

Number of protons in an atom

b)

Number of neutrons in an atom

c)

Number of atoms

d)

Atomic Mass

24.

How do you determine the number of orbitals an Element has?

a)

By the periods/rows

b)

By the groups/family/columns

25.

How do you determine the number of valence electrons an Element has?

a)

By the periods/rows

b)

By the groups/family/columns

26.

How are Elements similar to those in the same group on the periodic table?

a)

They have the same atomic mass

b)

They have the same number of valence electrons

c)

They have the same number of electrons

d)

They have the same number of protons

27.

An element is most stable/unreactive when it has ____ valence electrons (Except He)

a)

2

b)

8

c)

18

d)

7

28.

What group is highlighted?

a)

Alkali

b)

Alkaline

c)

Halogens

d)

Noble Gases

29.

What group is highlighted?

a)

Alkali

b)

Alkaline

c)

Halogens

d)

Noble Gases

30.

Are rows horizontal or vertical?

a)

Horizontal

b)

Vertical

31.

What group is highlighted?

a)

Alkali

b)

Alkaline

c)

Halogens

d)

Noble Gases

32.

What group is highlighted?

a)

Alkali

b)

Alkaline

c)

Halogens

d)

Noble Gases

33.

What group is highlighted?

a)

Actinides

b)

Lanthinides

c)

Transition Metals

d)

Liquid in natural state

34.

What are columns?

a)

Periods

b)

Family/Groups

35.

What are the groups that are highlighted?

a)

Purple - Gases

Red - Metalloids

Green Triangle - Triangles

b)

Purple - Gases

Red - Metalloids

Green Triangle - Liquid

c)

Purple - Noble gases

Red - Metalloids

Green Triangle - Solid

d)

Purple - Noble gases

Red - Metalloids

Green Triangle - Liquid

36.
Elements that are arranged in __________ have the most similar physical and chemical properties to each other.
a)
periods
b)
groups
37.

What are rows?

a)

Periods

b)

Family/Groups

38.

Are columns horizontal or vertical?

a)

Horizontal

b)

Vertical

39.

Elements in the same group or column have the same ...

a)

# of valence electrons

b)

# of shells

c)

# of protons

d)

Mass Number

40.
Each column in the periodic table is called a _________ .
a)
period
b)
group
c)
cluster
d)
unit
41.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
42.

What are the most reactive family of metals?

a)

Alkali

b)

Alkaline

c)

Halogen

d)

Noble Gas

43.

Valence electrons are 1-18 and are on the outer shell of an atom

a)

True

b)

False

44.

Orbital shells align with the columns of the periodic table

a)

True

b)

False

45.

What are the most reactive family of nonmetals?

a)

Alkali

b)

Alkaline

c)

Halogen

d)

Noble Gas

46.

What are valence electrons?

a)

All electrons

b)

Electrons on the outer orbital

c)

Electrons on the shell closest to the nucleus

d)

Victorian electrons

47.

Define Metals

a)

Elements below and to the left of the stair-step line

b)

Elements above and to the right of the stair-step line

c)

Elements touching the stair-step line

d)

Elements below the periodic table

48.

Orbital shells align with the columns of the periodic table

a)

True

b)

False

49.

How many valence electrons does He have?

a)

0

b)

2

c)

8

d)

18

50.

Orbital shells align with the rows of the periodic table

a)

True

b)

False

51.

Valence electrons are 1-8 and are on the outer shell of an atom

a)

True

b)

False

52.

You can find the amount of shells in an element by looking at the column number

a)

True

b)

False

53.

You can find the amount of shells in an element by looking at the period number

a)

True

b)

False

54.

How many orbitals or shells does Cl have?

a)

1

b)

2

c)

3

d)

4

55.

Orbital shells align with the rows of the periodic table

a)

True

b)

False

56.

Which is true for Carbon (C): (Column #; Orbital #; Valence Electron #)

a)

Column: 15; Orbitals: 2; Valence Electrons: 5

b)

Column: 14; Orbitals: 2; Valence Electrons: 6

c)

Column: 14; Orbitals: 2; Valence Electrons: 5

d)

Column: 14; Orbitals: 2; Valence Electrons: 4

57.

Which is true for Helium (He): (Column #; Orbital #; Valence Electron #)

a)

Column: 1; Orbitals: 1; Valence Electrons: 1

b)

Column: 1; Orbitals: 2; Valence Electrons: 2

c)

Column: 18; Orbials: 1; Valence Electrons: 2

d)

Column: 18; Orbitals: 2; Valence Electrons: 2

58.

Valence electrons can be found by looking at the column number and orbitals can be found looking at the row number

a)

True

b)

False

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