Name
~. 5
_
Date
_ Class
_
Chapter Test'
The Periodic Table
.' Multiple Choice
On t~ line at the left, write the letter of the answer that best completes each statement.
D
.J )
1. The properties of elements reoccur periodically when the elements are arranged in
order of increasing
a. atomic mass.
b. atomic number.
c. atomic radius.
d. electron affinity.
2. Mendeleev's periodic table was able to predict
a. the atomic numbers of unknown elements.
b. the chemical properties of unknown elements.
c. the existence of unknown elements.
d. both band c.
3. Elements that have similar properties are aligned in vertical columns called
a. periods.
b. blocks.
c. groups.
d. rows.
4. Na,and K have simi~a~ properties because they h~ve the same
a. atomic radii.
b. number of valence electrons.
c. ionization energy.
d. electronegativity.
."
A
5. the widest block of atoms, which contains 14 elements, is the
a. s-block.
b. p-block.
c. d-block.
d. f-block.
6. Atomic radius increases as you move
a. down a group.
b. across a period, from left to right.
c. up a group.
d. on a diagonal from the lower left corner to the upper right.
© Prentice-Hall, Inc,
Chapter 5 25
Name
_
Date
_ Class - - - - - -
5 Chapter Test (continued)
B
7. The fluorine ion is larger than the fluorine atom because
a. F- has a stronger positive charge on its nucleus than F.
b. F- has more electron-electron repulsions than F.
c. F- has one fewer electron.
d. F- now has an empty valence shell.
~8.
The elements with the highest ionization energies are the
a. noble gases.
b. alkali metals,
c. halogens.
d. transition metals.
9. Which of the following is a true statement about successive ionization energies?
a. The first ionization energy is always the greatest.
b. The largest increase occurs between the second and third ionization energies.
c. Ionization energies increase in a smooth and regular pattern.
d. For each element you can find one very large increase between a pair of
ionization energies.
10. The statement that atoms tend to gain, lose, or share electrons in order to acquire a
full set of valence electrons is called the
a. octet rule.
b. triad rule.
c. rule of octaves.
d. orbital principle.
True or False
If the statement is true, write "true." If it is false, change the underlined word or words to make the
statement true. Write your answer on the line provided.
]), b.z.r r'"C..A.(,./L
__________
/
(.
;> e..-
Itc f
~
11. Moseley classified elements of similar properties into triads.
X-Mendel~ev's predicted element, ekasilicon, turned out to be
--- germamum.
13. Atomic numbers were assigned to elements by Newlands.
14. The elements in Group 2A are the alkaline earth metals.
Jt1OI1. me L:l S 15.
:r=
26
Chapter 5
Many metals are gases at room temperature.
16. The abbreviated electron configuration for a Group lA element
might be [Ne]3s1.
© Prentice-Hall, Inc.
Name- - - - - - - - - - - - - - - - Date
Class
_
5 Chapter Test (continued) ,
Questions
For each of the following pairs, circle the atom or ion that has the larger atomic radius.
17.@rNa+
'.
18.
NO~
19.<0~+
20. Oo~
Answer each of the following4'uestions as directed.
21. An element has an electron configuration of [Ar]4s 2 . Without consulting the periodic table,
determine this ~ent's group and period,number.
~::~dl. ('cA/'
~fb~ J r ' )
__
0----­
22. An element has 'In ele~ron configuration of [He]2s 22p3. Without consulting the periodic table,
p and period number.
determine
lhiSl)7.r;.:u
_ _~ (\
~-'----=---I'O~(.lL..-d-:
_
23. The successivVioniz~tion energies for"a given element are listed below.
1st: 620kJ I mol
2nd: 1048 kJ I mol
3rd: 5105 kJ/mol
4th: 6765 kJ I mol
.To which group does this ele~ent belonp? ,Explain your answer.
C~ r2 - C\ Il,J t'~ kJJ,- ~ f.
.
.-
Essays
Write your answer to each question on
a separate sheet of paper.
24. Explain how the periodic table is divided into four sections or blocks. What does an element's
placement in a block reveal about that element?
25. Distinguish between ionization energy and electron affinity, then compare their values for
metals and nonmetals.
(
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e4 ~~
J-o
fefVUJw-'
e-
b(~~ 4-W.~ ell"-'OJ ~<<{ fc, ~<-<-fre© Prentice-Hall, Inc.
Chapter 5 27
Name
----------------
Date
Class
I
_
5 Chapter Test (continued)
Additional Questions
Answer each of the following questions in the space provided.
26. Identify wheth'1 rch of the following ele.ments is a metal or a nonmetal.
/lOt1J:-ha. [Ne]3s 23p5
t
!Jut
b. [Xe ]6s'4f145d lO
(
001/ fl!Y
c. [Ar]4s 23d104p4
27. Explain why helium and beryllium both have two outer shell electrons but do not have
('
similar properties.
1J-e.' I S
tl Hod
,1
1~7.
~
2.fl<"~
t<
I'l
N..
0 . . "
-O-C---.--
1-u
C!-(,0
II
xvp [I
<H
28. Explain why hydrogen is separated slightly from the other elements in the alkali metal group.
%¥
c..,t<.
he< ~ I" IB&-."
.
<;; /Yl (
'/
-..r
I
e,-
"fA j
1/
()' 7h-L'
h
/10
qkr p,opcvl() 71-e; f
e42 ,-....p----1-')
/
f
29. Why did Mendeleev and other chemists of his time arrange elements in order of atomic
masses? What discovery led chemists to change to a different method of arranging the
elements?
r
. I
/ /
9
fl\Lc-br-kl. Z cd- 14
IttcJ: J krLovL~
jau
j
sL
0/VT'
30. Determine how many electrons these elements would either have to gain or lose to become
stable?
a. calcium, [Ar]4s2
d
b. aluminum, [Ne]3s 23pl
c.
sulfur, [Ne]3s 23p4
31. Element X has the electron configuration ls22s22p63s23p64s23d104p4. To what group and period
does this element belong? Classify this element as a meta, nonmetal- or semimetal.
6:ao
&
;0 J
No
A hU.
(
Additional Essay
Write your answer to the following question on
a separate sheet of paper.
32. Describe the changing properties 9f the elements across Period 2 from lithium to neon.
£/~c~,'\.)
28 Chapter 5
6-<C..t:.
clo~~;; 1 ~ _~1UL L~
£'r e!ec-~I1).
(i
>-cJ
l1.Ave.
V1
/
)j k~.~ Ci///7:LLi.v~
© Prentice-Hall, Inc.