Name: __________________________
Date: ________________________
Grade 9 Chemistry Quiz
True or False
Indicate T or F to indicate if the statement is true or false.
1. ____ The proton is found in the nucleus of the atom.
2. ____ A lithium atom has more protons than an atom of helium.
3. ____ Molecular compounds are produced when metal and non-metal atoms bond.
4. ____ Noble gases form positive ions.
5. ____ Compounds are pure substances.
6. ____ The chemical formula for water is H2O2.
7. ____ Molecular compounds have high melting points.
8. ____ Ionic compounds form crystals and dissolve in water.
9. ____ Water is an ionic compound.
10. ____ Noble gases are very reactive elements that will react with water and air.
11. ____ Alkali metals are very hard shiny metals that form ions with a charge of 1-.
12. ____ Alkaline Earth Metals have a combining capacity of 2 (can bond with 2 other atoms).
13. ____ The least reactive families are the Halogens and Alkali metals.
14. ____ MgCl2 is a compound containing magnesium and chlorine.
15. ____ MgCl2 is a compound made up of 5 atoms.
Fill in the Blanks
Word Bank
nucleus
lustrous
protons
halogens
neutrons
gases
neutrons
electrons
electricity
unreactive
Mendeleev
element
ductile
isotopes
heat
protons
noble
compounds
protons
chemical
Fill in the blanks with the term that best completes the statement.
1. An ____________________ is a substance that contains only one type of atom and cannot be broken down through chemical
means.
2. The atom is composed of smaller pieces called __________________, __________________, and ______________________.
3. Most of the atom’s mass is found in the ___________________.
4. The atomic number is the number of __________________ an atom of the element has.
5. atomic mass = __________________________ + ________________________
6. _____________________ have the same number of protons but a different number of neutrons.
7. A Russian scientist named ______________________ found that if you arranged the elements based on their
_____________________ properties and atomic mass patterns emerged.
8. Metals are _________________, malleable, __________________, great conductors of ________________ and ___________,
and are solids at room temperature (with the exception of mercury).
9. Most non-metals are ______________, some are solids, and one is a liquid at room temperature.
10. The _______________ gases are found on the far right of the periodic table. They are all _________________, and do not
interact with all the other elements.
11. __________________ are the non-metals found right beside the noble gases. They are very reactive elements and are almost
always found as _______________________.
Matching
Match the definition in column A with the term in column B. Write the letter of the response in the blank on the left.
A
B
____ 1. Atomic number of lead.
____ 2. The name for a column in the periodic table.
____ 3. A horizontal row in the periodic table.
____ 4. Malleable, ductile elements that are good conductors.
____ 5. Location of a neutron in an atom.
____ 6. Atoms of the same elements having a different mass.
____ 7. A positive, subatomic particle.
____ 8. Where electrons are found in the atom.
____ 9. The number of protons in a chlorine atom.
____ 10. The atomic mass of krypton.
____ 11. Formed by the attraction of opposite charges.
____ 12. A charged particle.
____ 13. Results from shared electrons.
____ 14. The outer electron shell
____ 15. Number of valance shell electrons in an oxygen atom.
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
energy shells
isotope
83
molecular compound
family
neutron
metalloid
17
period
valence shell
electron
82
6
ion
nucleus
metal
ionic compound
84
proton
Short Answer
1. Write the number of subatomic particles in copper:
a. Protons:
b. Neutrons:
c. Electrons:
2. List three uses of copper.
3. Give two physical properties of copper.
4. What alloy does tin make when mixed with copper?
5. Why isn’t pure copper used for making bells?
6. How much would you have to zoom in on a map of Canada to replicate the power of an electron microscope?
For each of the following atoms, draw a bohr diagram that shows the number of electrons in each energy shell.
7. Lithium
8. Flourine
9. Carbon
10. Sulfur
What are the names of the following ionic compounds?
11. MgO
_______________________________________
12. NaCl
_______________________________________
13. Al2S3
_______________________________________
What is the chemical formula of the following ionic compounds?
14. Magnesium sulfide
__________________________
15. Beryllium phosphide
__________________________
16. Aluminum chloride
__________________________
17. Lithium chloride
__________________________
What is the chemical formula of the following molecular compounds?
18. Dihydrogen dioxide
_________________________
19. Dihydrogen monoxide
_________________________
20. Carbon tetrahydride
_________________________
21. Dinitrogen hexachloride
_________________________
*BONUS*
What are the lyrics of the ASAP Science Periodic Table Song?