Uploaded by Janine Lavoie

GR9 CHEMISTRY REVIEW

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PROPERTIES OF SUBSTANCES
What is the difference between a physical property and a chemical property? Give an example of each.
PROPERTY
DEFINITION
EXAMPLE
PHYSICAL
CHEMICAL
What is the difference between a physical change and a chemical change? Give an example of each.
CHANGE
DEFINITION
EXAMPLE
PHYSICAL
CHEMICAL
What is the difference between a qualitative property and a quantitative property? Give an example of each.
PROPERTY
DEFINITION
EXAMPLE
QUALITATIVE
QUANTITATIVE
ATOMIC STRUCTURE REVIEW
Complete the table below about the characteristics of the parts of an atom
Particle
Charge
Location
Proton
Electron
Neutron
Label the parts of the atom
A=
B=
C=
D=
Relative Size
Symbol
Fill in the blanks
The nucleus of the atom has a _________________ charge because it contains ______________ and
________________.
Electrons are arranged in ___________________________.
The first electron shell can hold _____ electrons.
The second and third electron shells can each hold _____ electrons.
The outermost shell with electrons in it is called the ___________________ shell. Electrons in this shell are
called ____________________________.
The number of ___________________ electrons can be used to predict the ________________ of an
element.
In general, atoms are _______________ because they have the ___________ number of
__________________ and _________________.
An atom that has a charge is called an ___________.
A cation has a _______________ charge because it has more _______________ than _______________.
An anion has a _______________ charge because it has more _______________ than _______________.
___________________ elements tend to become cations.
___________________ elements tend to become anions.
Using the periodic table of elements:
Write the names of the 5 alkaline earth metals.
Write the symbols of the 5 halogens
How do you determine the number of valence electrons an element has by using the periodic table?
Why are noble gases called inert gases?
Use the periodic table to complete the following Bohr-Rutherford diagrams
a)
14
7
N
b) a halogen in the second period
Atomic number:
Name of atom:
# valence electrons:
# valence electrons:
c) A metalloid in the third period
d) A sodium-23 1+ ion
Name of atom:
Charge of ion:
# valence electrons:
# valence electrons:
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