Chemistry Unit Test A.

The one- or two-letter code used to

identify an element
_____  Matter
B. An element that is typically shiny,
malleable and ductile.
_____  Mass
C. The amount of matter inside a substance
D. A pure substance composed of at least
_____  Volume
two elements combined in a specific way
_____  Kinetic Energy E. An element that is typically not shiny,
malleable or ductile. Often a brittle solid at
_____  Density room temperature.
F. A particle that exists in orbit around an
_____  Qualitative observation atom, and has a negative charge
G. The amount of space an object occupies
_____  Quantitative observation H. A particle that exists in the nucleus of an
atom, and has a positive charge
_____  Element I. The area where electrons exist
J. A particle that exists in the nucleus of an
_____  Compound atom, and has a neutral charge
K. A tiny unit of matter, which can refer to
_____ Atom atoms and molecules. It is used to
illustrate the Kinetic
_____ Subatomic Particle Molecular Theory
L. Tiny particles that are made up of smaller
_____ Proton particles. These make up all matter.
M. The dense core of an atom, composed of
_____ Neutron two types of particles
N. A proton, neutron or electron
_____ Electron O. The ratio of mass to volume in a
substance / The amount of mass
_____ Nucleus something has, divided by its volume
P. A pure substance that cannot be broken
down further
_____ Particle
Q. Anything that has mass and volume
R. A type of energy that describes motion
_____ Energy shell
S. An observation about the properties of a
substance, using the five senses to
_____ chemical symbol

describe
T. An observation about the properties of a
_____ non-metal
substance, using numbers to describe 


_____ metal
Multiple Choice
1. When you add heat to a substance...

a) particles slow down and vibrate faster

b) particles speed up and vibrate faster

c) particles slow down and vibrate slower

d) particles’ speed and vibration do not change 


2. Matter is...

a. anything that has material and volume

b. anything that has weight

c. anything that has mass and volume

d. anything that has mass 


3. A solid has...

a. a definite volume and shape

b. a definite volume and a shape that is determined by the

shape and size of its container
 c. a definite volume and a shape that is determined by the
shape of its container

d. a volume and shape that are both determined by the shape

and size of its container 


4. A liquid has...

a. a definite volume and shape

b. a definite volume and a shape that is determined by the

shape and size of its container

c. a definite volume and a shape that is determined by the

shape of its container

d. a volume and shape that are both determined by the shape

and size of its 

container 


5. A gas has...

a. a definite volume and shape

b. a definite volume and a shape that is determined by the

shape and size of its 

container

c. a definite volume and a shape that is determined by the

shape of its container

d. a volume and shape that are both determined by the shape

and size of its 

container 


6. Which has the greatest volume?

 a) a beach ball 

b) a bowling ball

c) your head

d) a ball bearing 


7. Condensation is...

a. A liquid turning to a solid

b. A solid turning to a liquid 


c. A gas turning to a liquid

d. A liquid turning to a gas 


8. Evaporation is...

a. A liquid turning to a solid

b. A solid turning to a liquid

c. A gas turning to a liquid

d. A liquid turning to a gas 


9. Melting

a. A liquid turning to a solid

b. A solid turning to a liquid

c. A gas turning to a liquid

d. A liquid turning to a gas 


10. Solidification is...

a. A liquid turning to a solid 


b. A solid turning to a liquid 


c. A gas turning to a liquid 


d. A liquid turning to a gas 


11. Sublimation is...

a. A gas turning directly to a solid 


b. A solid turning directly to a gas 


c. A gas turning to a liquid 


d. A liquid turning to a gas 


12. Deposition is...

a. A gas turning directly to a solid 


b. A solid turning directly to a gas 


c. A gas turning to a liquid 


 d. A liquid turning to a gas 


13. Morning mist turning to frost on the grass is an example of:

a. Solidification 


b. Deposition 


c. Condensation 


d. Evaporation 


14. Mist rising off a lake as the sun warms the water is an example
of:

a. Solidification 


b. Deposition 


c. Condensation 


d. Evaporation 


is...

15. Morning dew droplets on grass is an example of:

a. b. c. d.
16. A river a.
b. c. d.
Solidification Deposition Condensation Evaporation
freezing over is an example of: Solidification

Deposition

Condensation
Evaporation
Draw to Explain
17. In the boxes below, draw a picture of what the particles look
like in a solid, liquid and gas:
(3 marks)

Liqui
Solid Gas
d

18. State the four main points of the Kinetic Molecular Theory. Use
words as well as
images to describe:

Short Answer
19. Describe why objects expand (get slightly bigger) when they get
warmer?
____________________________________________________________
______________

____________________________________________________________
______________

____________________________________________________________
______________
____________________________________________________________
______________

____________________________________________________________
______________

____________________________________________________________
______________

____________________________________________________________
______________
20. Describe the relationship between the space between particles
and the state of matter. 


________________________________________________________
__________________

21.
________________________________________________________
__________________
22.
________________________________________________________
__________________
23.
________________________________________________________
__________________
24.
________________________________________________________
__________________
25.
________________________________________________________
__________________
26.
________________________________________________________
__________________
27. 

28. What is the difference between evaporation and sublimation?
________________________________________________________
__________________ 


________________________________________________________
__________________

29.
________________________________________________________
__________________
30.
________________________________________________________
__________________
31.
________________________________________________________
__________________
32.
________________________________________________________
__________________
33.
________________________________________________________
__________________
34. 


35. Suppose you want a screw (or “nut”) to fit very tightly into a
bolt. Is it a better idea to heat the screw above room
temperature first, or to chill the screw? Use your knowledge of
the Kinetic Molecular Theory to explain your answer.
________________________________________________________
__________________ 


________________________________________________________
__________________

36.
________________________________________________________
__________________
 37.
________________________________________________________
__________________
38.
________________________________________________________
__________________
39.
________________________________________________________
__________________
40.
________________________________________________________
__________________
41. 


Quiz 1.3 Name: ___________________

Atomic Theory
MATCHING

_____ Atom

_____ Proton

_____ Neutron

_____ Electron

_____ Nucleus

_____ Particle

_____ Energy shell

_____ Subatomic Particle

1. A particle that exists in orbit around an atom, and has a negative charge

2. A particle that exists in the nucleus of an atom, and has a positive charge

3. The area where electrons exist

4. A particle that exists in the nucleus of an atom, and has a neutral charge

5. A tiny unit of matter, which can refer to atoms and molecules. It is used to illustrate the
Kinetic Molecular Theory

6. Tiny particles that are made up of smaller particles. These make up all matter.

7. The dense core of an atom, composed of two types of particles

8. A proton, neutron or electron

Multiple Choice

1. The size of the nucleus compared to the rest of the atom is like…

a. The size of a grape compared to a watermelon

b. The size of a pop can compared to the entire solar system
c. The size of a grain of sand compared to a watermelon
d. The size of a baseball compared to the size of the stadium and parking lot
surrounding it

2. Ernest Rutherford’s main discovery was that…

a. All matter is composed of atoms that cannot be created, destroyed or divided
b. Atoms include negative particles, which he called “electrons”
c. Atoms include a dense central nucleus
d. Electrons orbit the atom in “energy shells”

3. John Dalton’s main discovery was that…

a. All matter is composed of atoms that cannot be created, destroyed or divided
b. Atoms include negative particles, which he called “electrons”
c. Atoms include a dense central nucleus
d. Electrons orbit the atom in “energy shells”

4. J.J. Thompson’s main discovery was that…

a. All matter is composed of atoms that cannot be created, destroyed or divided
b. Atoms include negative particles, which he called “electrons”
c. Atoms include a dense central nucleus
d. Electrons orbit the atom in “energy shells”

5. Niels Bohr’s main discovery was that…

a. All matter is composed of atoms that cannot be created, destroyed or divided
 b. Atoms include negative particles, which he called “electrons”
c. Atoms include a dense central nucleus
d. Electrons orbit the atom in “energy shells”

6. Which particles exist inside the nucleus?

a. Electrons and neutrons
b. Protons and Electrons
c. Neutrons and Protons
d. Electrons and Nuclei

7. Electrons jump between energy shells when they:

a. change into a new atom
b. gain or lose energy
c. change from one state to another (ex: liquid to gas)
d. have too many protons in the nucleus of the atom

8. An atom that has 5 protons, 5 neutrons and 5 electrons has a:

a. positive charge
b. negative charge
c. neutral charge

9. The first group of people / person to believe in the existence of the atom were / was:
a. The Greeks
b. The Alchemists
c. Dalton
d. Thompson

10. Most of an atom’s mass is found in the:

a. electron shells
b. nucleus

11. Most of an atom’s volume is found in the

a. electron shells
b. nucleus

Draw to Explain

12. Using the diagram below, label the parts of an atom:

(6 marks)
13. Which atomic pioneer arrived at a model of the atom that looks like the diagram
above?
a) Bohr
b) Rutherford
c) Dalton
d) Thompson
Short Answer

14. In his gold foil experiment, how did Ernest Rutherford prove that there is a dense
nucleus at the centre of every atom?
__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

15. How did the Alchemists improve on the Greeks’ method of finding out about matter?
__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________
 __________________________________________________________________________

__________________________________________________________________________

16. How did modern Scientists improve on the Alchemists method of finding out about
matter?
__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

Quiz 2.1 Name:___________________

Elements
MATCHING

_____ conductor

_____ malleable

_____ ductile

_____ chemical symbol

_____ non-metal

_____ metal

_____ Element

_____ Compound

1. The one- or two-letter code used to identify an element

2. A pure substance that cannot be broken down further

3. An element that is typically shiny, malleable and ductile.

4. Able to be beaten into sheets

5. An element or compound that allows heat and/or electricity to flow freely through it

6. Able to be drawn into thin wires

7. A pure substance composed of at least two elements combined in a specific way

8. An element that is typically not shiny, malleable or ductile. Often a brittle solid at room
temperature.

Multiple Choice

1. The chemical symbols of the elements are:

a) used internationally

b) used only in Canada

c) used only in Canada, the US and Europe


2. Metals…

a. are generally good conductors of heat and electricity

b. are generally poor conductors of heat and electricity
c. have a wide variation of conductive ability

3. Metals are generally NOT:

a. shiny
b. malleable
c. brittle (crumbly)
d. ductile

4. Most elements are either:

a. noble or common
b. heavy or light
c. gases or liquids
d. metals or non-metals

5. How many letters may a chemical symbol have?

a. 1 to 3 letters
b. 1 to 2 letters
c. Only 1 letter
d. As many letters as required
6. If a chemical symbol has two letters
a. both must be capitalized
b. The first must be capitalized, and the second lowercase
c. Both must be lowercase

7. Which chemical symbol makes sense as a name for “Magnesium?”

a. Mag
b. Mg
c. Gn
d. Sm

8. Which chemical symbol makes sense as a name for “Barium?”

a. Bar
b. Rm
c. Brm
d. Ba

9. The most common element in the whole Earth is:

a. Silicon
b. Oxygen
c. Iron
d. Magnesium

10. The most common element in the Earth’s crust is:

a. Silicon
b. Oxygen
c. Iron
d. Magnesium

11. Which of the following metals is a liquid at room temperature?

a. aluminum
b. magnesium
c. nickel
d. mercury

12. Which of the following is a gas at room temperature?

a. calcium
b. chlorine
c. carbon
d. copper

13. Different elements are used in specific ways. This is because of each element’s
a. unique physical properties
b. specific energy
c. specific strength
14. Which metal is so soft that it can be easily cut with a knife?
a. silver
b. aluminum
c. sodium
d. iron

15. Which of the following elements is highly flammable?

a. Iron
b. Chlorine
c. Mercury
d. Hydrogen

Short Answer

19. Describe the four ways an element’s chemical symbol may be chosen:

• ____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

• ____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

• ____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

• ____________________________________________________________________

____________________________________________________________________
 ____________________________________________________________________

Quiz 2.2 Name:___________________

The Periodic Table

MATCHING

_____ average atomic mass

_____ periodic table

1. An element that is typically shiny,
_____ atomic number malleable and ductile.

_____ ion charge 2. Highly reactive class of metals

_____ chemical symbol 3. non-metallic elements that are

typically gases and are highly reactive

_____ period
4. a horizontal row on the periodic table

_____ chemical family / group

5. An element or compound that allows
_____ metal heat and/or electricity to flow freely through
it

_____ metalloid
6. metals that are moderately reactive

_____ non-metal
7. non-metallic elements that are
typically gases and are unreactive

_____ alkali metals

8. An element that is typically not shiny,
_____ alkaline earth metals malleable or ductile. Often a brittle solid at
room temperature.

_____ halogens
9. An element that combines the
_____ noble gases characteristics of both metals and non-
metals

10. the number of protons in the nucleus

of a particular atom

11. the weighted average of the masses

of the atoms of an element

12. elements in a vertical column of the

periodic table, grouped together because 14. the electric charge of an atom when it
they share properties
gains or loses electrons

13. a tool for organizing our knowledge of 15. the one- or two-letter code used to
the known elements. It organizes elements identify an element

by atomic number, mass, and chemical

properties.

Multiple Choice

1. An item of information you WILL NOT FIND about an element on the periodic table is:

a) it’s average atomic mass

b) it’s atomic number

c) it’s ion charge, if applicable

d) it’s colour

2. The three major types of elements on the periodic table are:

a. metals, non-metals and metalloids

b. solids, liquids and gases
c. alkali metals, alkaline earth metals and halogens
d. alkali metals, alkaline earth metals and noble gases

3. Noble gases are:

a. unreactive
b. reactive
c. highly reactive

4. Refer to your periodic table. Magnesium’s ion charge is:

a. -1
b. +
c. 2+
d. 2+ and 3+

5. Oxygen has:
a. 5 protons
b. 6 protons
c. 7 protons
d. 8 protons

6. Helium is a:
a. alkali metal
b. alkaline earth metal
c. halogen
d. noble gas

7. Lithium is a
a. alkali metal
b. alkaline earth metal
 c. halogen
d. noble gas

8. Magnesium is a
a. alkali metal
b. alkaline earth metal
c. halogen
d. noble gas

9. Calcium is a
a. alkali metal
b. alkaline earth metal
c. halogen
d. noble gas

10. Argon is a
a. alkali metal
b. alkaline earth metal
c. halogen
d. noble gas

11. Which of the following is the same as the atomic number of an element?
a. number of electrons
b. number of protons
c. number of neutrons
d. number of ion charges

12. Describe why an atom of an element always has a balanced number of protons and
electrons

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

13. What do you call an atom of an element when it gains or loses one or more electrons?
_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

Quiz 2.3 / 3.1 Name: ___________________

Periodic Table & Compounds

MATCHING

_____ Bohr Model

_____ Valence electron

_____ Valence shell

_____ covalent compound

_____ ionic compound

_____ ionic lattice

_____ molecule

_____ polyatomic ion

_____ chemical bonds

1. A group of atoms bound together by sharing one or more pairs of electrons

2. The outermost electron shell of an atom or ion

3. A way to visually show the number of electrons in an atom or ion

4. Links between one or more atoms that hold them together

5. A repeating pattern of positive and negative ions

6. A compound that forms when one atom gives up one or more electrons to another
atom, and is then attracted to it

7. An electron in the outer shell

8. A type of compound that forms when two or more atoms combine by sharing electrons

9. groups of ions that are held together by covalent bonds, but also have an overall
electric charge

Multiple Choice

1. The number of electrons in each shell going outward from the nucleus is:

a. 2, 8, 8, 8

b. 2, 8, 8, 16

c. 2, 8, 8, 18

d. 2, 8, 8, 24

2. The H+ ion has:

a. only one proton, and no neutrons or electrons
b. 2 electrons and a proton
c. 1 electron and a proton

3. An atom with one valence electron would tend to:

a. lose its electron
b. gain another electron
c. gain seven more electrons

4. Noble gases have:

a. a full valence shell
b. one valence electron on their outer shell
c. four valence electrons on their outer shell
d. seven valence electrons on their outer shell

5. An atom that has become an ion by losing 3 electrons now has a:

a. 3+ charge
b. 3— charge
c. neutral charge

6. Alkali metals have

a. 1 valence electron
b. 2 valence electrons
c. 3 valence electrons
d. 4 valence electrons

7. NaCl is a
a. All matter is composed of atoms that cannot be created, destroyed or divided
b. Atoms include negative particles, which he called “electrons”
c. Atoms include a dense central nucleus
d. Electrons orbit the atom in “energy shells”
8. True or False?

____ Metals appear on the right-hand side of the Periodic Table

____ Valence shell is just another name for an electron shell

____ A Bohr model shows how many protons are in an atom or ion

____ Metals tend to gain electrons

____ Non-metals tend to gain electrons

____ Ions have the same electron arrangement as the nearest Noble Gas

____ positive (+) ions are formed when an atom loses one or more electrons

____ chemical bonds can be either covalent or ionic

____ NaCl (table salt) is a covalent compound

____ H20 (water) is a molecule

____ ionic lattices of ions form crystal structures

____ an element is a pure substance made of more than one kind of compound

____ covalent compounds involve the sharing of electrons, while ionic compounds
involve the transfer of electrons

____ Atoms are held together by covalent bonds in polyatomic ions

____ oppositely charged ions attract each other

 Draw to Explain

9. Draw a model of the carbonate polyatomic ion (CO3 2—)

10. Using your Periodic Table, list all the metalloids:

11. Draw a Bohr Diagram for the following atoms:

Carbon Nitrogen Silicon

12. Draw a Bohr Diagram for the following ions:

Chlorine Oxygen Beryllium

13. Ionic compounds only melt at very high temperatures. Salt, for example, melts at
800 degrees Celsius. Why is it so difficult to melt ionic compounds? Explain by talking
about the chemical bonds involved.

__________________________________________________________________________

__________________________________________________________________________
__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________