Note: If you cannot clearly view any of the
periodic tables in this document, go ahead and use the periodic table from your textbook (ps.
286-287) or the periodic table in the back of your agenda (p. 125).
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1.
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Look at the diagram below of one Neon (N) atom.
Two-Part Question
1) Based
on the number of valence electrons, what group number is Neon found in?
2) Is this element
reactive or inert?
a. | 1) Group 18
2) It is very
reactive | b. | 1) Group 8
2) It is inert | c. | 1) Group 18
2) It is inert |
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2.
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In which group is this element located, and
how many valence electrons does it have? a. | Group: 2
Valence Electrons: 10 | b. | Group: 18
Valence Electrons: 8 | c. | Group: 12
Valence Electrons:
6 |
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3.
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Look at the diagram below of one Boron (B) atom.
Two-Part Question
1) How
many valence electrons does each Boron atom contain?
2) Is this element reactive or inert?
a. | 1) 3 valence electrons
2) It is
reactive | b. | 1) 3 valence electrons
2) It is
non-reactive | c. | 1) 5 valence electrons
2) It is
reactive |
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4.
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A periodic table of
the elements is shown below.
What do the following three elements have in common?
Atomic Number 19,
Atomic Number 55, and Atomic Number 87
a. | They are in the same period,
and they are all very reactive. | b. | They all have one valence electron, and they are very
reactive. | c. | They all are alkaline-earth metals with three valence
electrons. |
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5.
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Examine the following model of an
atom.
How can you determine if this element
is reactive or inert?
a. | Count the number of electrons in the outer shell.
If the shell is full, the element is non-reactive. | b. | Count the total number of electrons. If this amount is greater than 20,
then the element is inert. | c. | Add the number of
protons and neutrons. If the sum is more than 10, the element is
inert. |
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6.
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The diagram below
shows part of the periodic table of the elements.
Which two
elements listed below each have exatly two valence electrons?
a. | Ne and
Ar | b. | Be and
Mg | c. | C and
O |
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7.
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Take a close look at the following model of an
atom from the Nobel Gas family..
Two-Part Question
1) How many electron energy levels does this
element have?
2) How many valence electrons does this atom contain?
a. | 1) Three electron shells
2) Eight valence
electrons | b. | 1) Four electron shells
2) Eight valence
electrons | c. | 1) Three electron energy levels
2) Twenty-two
neutrons |
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8.
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The periodic table
of the elements is shown below.
Based on their locations in the periodic table, which two elements share
the most similar
chemical properties?
a. | Au
(atomic number: 79 and
Ca (atomic number: 20) | b. | He (atomic number: 2 and Ne (atomic number: 10) | c. | B (atomic number: 5) and O (atomic number:
8) |
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9.
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Look at the diagram below of one non-metal
atom.
Two-Part Question
1) Which
group is this atom found in?
2) What is the family name for this element?
a. | 1) Group 18
2) Noble Gas family | b. | 1) Group 1
2) Alkali Metal family | c. | 1)
Group 17
2) Halogen family |
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10.
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Review the following
non-metal group from the periodic table.
What
is the family name for this group, and how many valence electrons does every element in this group
have?
a. | Family Name:
Halogens
Valence
Electrons: Seven | b. | Family Name: Transition Metals
Valence Electrons:
Six | c. | Family Name: Noble Gases
Valence Electrons:
Eight |
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