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Chapter 5 Exam

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
The idea of arranging the elements in the periodic table according to their chemical and physical properties is attributed to
a.
Mendeleev.
c.
Bohr.
b.
Moseley.
d.
Ramsay.
 

 2. 
Mendeleev noticed that properties of elements usually repeated at regular intervals when the elements were arranged in order of increasing
a.
atomic number.
c.
reactivity.
b.
density.
d.
atomic mass.
 

 3. 
The periodic table
a.
permits the properties of an element to be predicted before the element is discovered.
b.
will be completed with element 118.
c.
has been of little use to chemists since the early 1900s.
d.
was completed with the discovery of the noble gases.
 

 4. 
The principle that states that the physical and chemical properties of the elements are periodic functions of their atomic numbers is
a.
the periodic table.
c.
the law of properties.
b.
the periodic law.
d.
Mendeleev's law.
 

 5. 
Elements in a group or column in the periodic table can be expected to have similar
a.
atomic masses.
c.
numbers of neutrons.
b.
atomic numbers.
d.
properties.
 

 6. 
How much greater is the atomic number of the fourth element in groups 1, 2 and 18 than the preceding element?
a.
3
c.
18
b.
4
d.
20
 

 7. 
A horizontal row of blocks in the periodic table is called a(n)
a.
group.
c.
family.
b.
period.
d.
octet.
 

 8. 
The electron configuration of aluminum, atomic number 13, is [Ne] 3s2 3p1. Aluminum is in Period
a.
2.
c.
6.
b.
3.
d.
13.
 

 9. 
Identify the sublevels in a period that contains 32 elements.
a.
s, f
c.
s, p, d
b.
s, p
d.
s, p, d, f
 

 10. 
The electron configuration of cesium, atomic number 55, is [Xe] 6s1. In what period is cesium?
a.
Period 1
c.
Period 8
b.
Period 6
d.
Period 55
 

 11. 
In Period 3 there are 8 elements. What sublevel(s) is (are) being filled?
a.
s
c.
s and p
b.
s and d
d.
d and f
 

 12. 
Period 4 contains 18 elements. How many of these elements have electrons in the d sublevel?
a.
8
c.
16
b.
10
d.
18
 

 13. 
The electron configurations of the noble gases from neon to radon in the periodic table make these elements part of the
a.
f block.
c.
s block.
b.
d block.
d.
p block.
 

 14. 
Nitrogen's electron configuration is 1s2 2s2 2p3. To what group does nitrogen belong?
a.
Group 2
c.
Group 15
b.
Group 7
d.
Group 17
 

 15. 
The first member of the noble gas family, whose highest energy level consists of an octet of electrons, is
a.
helium.
c.
neon.
b.
argon.
d.
krypton.
 

 16. 
When an electron is added to a neutral atom, a certain amount of energy is
a.
always absorbed.
b.
always released.
c.
either released or absorbed.
d.
transferred to the more electronegative element.
 

 17. 
Which represents a neutral atom acquiring an electron in a process where energy is released?
a.
A + e– + energy ® A–
b.
A + e– ® A– – energy
c.
A + e– ® A– + energy
d.
A– + energy ® A + e–
 

 18. 
The element that has the greatest electronegativity is
a.
oxygen.
c.
chlorine.
b.
sodium.
d.
fluorine.
 

 19. 
In the alkaline-earth group, atoms with the smallest radii
a.
are the most reactive.
b.
have the largest volume.
c.
are all gases.
d.
have the highest ionization energies.
 

 20. 
Which is the best reason that the atomic radius generally increases with atomic number in each group of elements?
a.
The nuclear charge increases.
b.
The number of neutrons increases.
c.
The number of occupied energy levels increases.
d.
A new octet forms.
 

 21. 
As you move down Group 14 in the periodic table from carbon through lead, atomic radii
a.
generally increase.
c.
do not change.
b.
generally decrease.
d.
vary unpredictably.
 

 22. 
The electrons available to be lost, gained, or shared when atoms form compounds are called
a.
ions.
c.
d electrons.
b.
valence electrons.
d.
electron clouds.
 

 23. 
The number of valence electrons in Group 17 elements is
a.
7.
c.
17.
b.
8.
d.
equal to the period number.
 

 24. 
For groups 13 through 18, the number of valence electrons is equal to the group number
a.
plus 1.
c.
minus the period number.
b.
plus the period number.
d.
minus 10.
 

 25. 
In groups 13 through 18, valence electrons may be in sublevels
a.
s and d.
c.
d and f.
b.
s and p.
d.
p and d.
 



 
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