SCH 4C
Are you ready for grade 12 chemistry??
1. Fill in the blanks with the best term.
a) The centre of an atom is called the __________________
b) Protons have a ______________ charge, electrons have a _________________ charge
c) The first energy level of an atom can contain a maximum of ____ electrons.
d) The elements on the left hand side of the periodic table are ________________
e) The elements in the last column (far right) of the periodic table are known as the ___________________
2. Atomic structure and the periodic table-complete the following table using the periodic table
a)
Element Name
Symbol
Atomic #
C
19
Ne
14
Sodium
b)
Element Name
# of protons
# of electrons
# of neutrons
Magnesium (Mg)
Iodine (I)
Iron (Fe)
3. Give the total number of atoms in the following:
(i) 5 AlCl3 __________
(ii)
CH3COOH __________
(iii) 4 (NH4)2SO4
4. Name the following compounds.
NaBr __________________________________
N2O4 ______________________________
Fe2(SO4)3 _______________________________
AlF3 ________________________________
5. Give the chemical formula for the following compounds.
sodium nitrate __________________________
nitrogen trifluoride _____________________
copper (II) oxide ______________________________
magnesium chloride ____________________________
6. Balance the following chemical equations.
a)
Zn
c)
C4H10
+
HCl
+
 ZnCl2
O2

CO2
+
+
H2
H2O
b)
KClO3

d)
Al
H2SO4 
+
KCl
+
O2
Al2(SO4)3
+
H2
7. What is the total number of electrons in the following atom or ions?
Mg 2+ ________
Rb ___________
Al3- __________
Fe _______________
8. Distinguish between an ionic bond and a covalent bond.
_______________________________________________________________________________________________
_______________________________________________________________________________________________
9. Distinguish between a chemical and a physical change.
_______________________________________________________________________________________________
_______________________________________________________________________________________________
SCH 4C
Element Names and Symbols
You need to memorize the following elements and their symbols. Use a periodic table to write the correct symbol for
each of the elements.
______ aluminum
______ chromium
______ magnesium
______ radium
______ antimony
______ cobalt
______ manganese
______ silicon
______ argon
______ copper
______ mercury
______ silver
______ arsenic
______ fluorine
______ neon
______ sodium
______ barium
______ gold
______ nickel
______ strontium
______ beryllium
______ helium
______ nitrogen
______ sulfur
______ boron
______ hydrogen
______ oxygen
______ tin
______ bromine
______ iodine
______ phosphorus
______ zinc
______ calcium
______ iron
______ platinum
______ carbon
______ lead
______ potassium
______ chlorine
______ lithium
______ radon
Chemistry Element Riddles
Use the element names as puns to complete the following sentences. (You will probably need a periodic table)
1. What language is spoken by the people of Mangan? _____________.
2. We brought everything but the kitchen ________________.
3. To be a good neighbor you must mind your own ________________.
4. To park here you must put a ________________ in the meter.
5. Dial 911 to call a ________________ and report a crime.
6. Doctors amputated the bottom half of his leg, but the left his ________________.
7. I borrowed a dollar from Sam and fifty cents from Dean. So I owe Sam more than ________________.
8. The Boy Scout took the old lady by the arm and ________________ her across the street.
9. The dog’s name is ‘Sul’. He is the reason our rugs and furniture are always covered in ________________.
10. Cadbury’s chocolate bought Mee-Yum cookies and they make ________________ chocolate cookies.
11. The well-driller had bored a hole to a depth of 10-meters. He found no water so he was told to _______________.
12. The makers of ‘Raid’ have slogan to advertise insect repellant. It reads: Don’t go outside without your _________.
13. A boy named Coe lost his dog. As a result ________________ his eyes out.
14. Five times two is ________________.
15. Are the children still here? No they ________________.
16. At the end of his first day as a car salesman, Mr. Umm was asked: did you ________________.