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Worksheets5.3 Representative Groups
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
A valence electron is an electron that is in the ______ occupied energy level of an atom.
a)
Highest
b)
Lowest
c)
Endemic
d)
Medium
2.
Across a period, the number of valence electrons increases from ____ to ____.
a)
Irksome
b)
Left to Right
c)
High to low
d)
Right to Left
3.
Alkali metals are in what group?
a)
1A
b)
1D
c)
2A
d)
3A
4.
Sodium chloride (table salt), a familiar compound, can be obtained through evaporation of _____.
a)
Geysers
b)
Seawater
c)
Your saltiness
d)
Rivers
5.
Differences in reactivity among the alkaline earth metals are shown by the ways they react with ____.
a)
Water
b)
Boron
c)
Arsenic
d)
Chinchillas
6.
What is the most abundant metal in Earth's crust?
a)
Scandium
b)
Copper
c)
Aluminum
d)
Lead
7.
Boron, aluminum, gallium, indium, and thallium each have how many valence electrons?
a)
4
b)
7
c)
2
d)
3
8.
Elements in a group have similar properties because...?
a)
...they are the same as in (metalliod, metal, nonmetal)
b)
...they have different numbers of valence electrons
c)
...they have the same number of valence electrons.
9.
Most of the compounds in your body contain carbon, except for....?
a)
H2O
b)
PB
c)
Ca
10.
Much of the _______ obtained from air is used to produce fertilizers.
a)
Nitrogen
b)
Oxygen
c)
Hydrogen
d)
Helium
11.
What is the most abundant element overall in Earth's crust?
a)
Nitrogen
b)
Aluminum
c)
Lead
d)
Oxygen
12.
Halogens are elements in what group of the periodic table?
a)
7A
b)
8A
c)
7B
d)
8B
13.
Halogens have very similar ______ properties yet very different _____ properties.
a)
Chemical, physical
b)
Physical, chemical
c)
Elemental, physical
14.
Noble gases are in what group of the periodic table?
a)
7A
b)
8B
c)
2A
d)
8A
15.
Noble gases are ___less and ____less.
a)
Color, element
b)
Papaya, chimp
c)
Color, odor
d)
Odor, halogen
16.
When electric current passes through noble gases, they emit different _____.
a)
odors
b)
atomic masses
c)
amounts of oxygen
d)
colors
17.
What is a name for another form of the element oxygen?
a)
glove
b)
ozone
c)
oxygeniary
d)
aback
18.
Noble gases are extremely reactive.
a)
True
b)
False
c)
sort of true
d)
sort of false
19.
Halogens react easily with most metals.
a)
True
b)
False
c)
Sort of true
d)
Sort of false
20.
Alkali metals have how many valence electrons ?
a)
3
b)
8
c)
2
d)
1
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