D plot io. Analyze and Conclude 1. Compare How does the size change when an atom forms a c cation and when an atom forms an anion? 2. Describe How do the ionic radii vary within a group of metals? How do they vary within a group of nonmetals? 3. Describe What is the shape of a portion of the graph that corre- sponds to one period? 4. Compare and Contrast Is the trend across a period similar o different for Periods 2, 3, 4, and 5? 5. Explain Propose explanations for the trends you have described for ionic radii within groups and across periods.
D plot io. Analyze and Conclude 1. Compare How does the size change when an atom forms a c cation and when an atom forms an anion? 2. Describe How do the ionic radii vary within a group of metals? How do they vary within a group of nonmetals? 3. Describe What is the shape of a portion of the graph that corre- sponds to one period? 4. Compare and Contrast Is the trend across a period similar o different for Periods 2, 3, 4, and 5? 5. Explain Propose explanations for the trends you have described for ionic radii within groups and across periods.
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter11: Modern Atomic Theory
Section: Chapter Questions
Problem 106AP: lement X, which has a valence shell configuration of ns2np4 , was isolated in a laboratory. Which of...
Related questions
Question
Transcribed Image Text:E
Quick Lab
Purpose To use a graph to iden-
tify period and group trends
Materials
• graph paper
• pencil
lonic radius (pm)
250
200
150
100
50
0
0
lonic Radius vs.
Atomic Number
10 20 30 40 50 60
Atomic number
Figure 6.23 Atomic and lonic Radii
Atomic and ionic radii are an
indication of the relative size of atoms
and ions. The data listed are reported
in picometers (pm).
60
95
133
148
169
1A
Na
H
Li
180 Chapter 6 • Lesson 3
Rb
156
30
1+
191
1+
238
255
14
+
273
44
66
99
112
Periodic Trends in lonic Radii
Procedure
Use the data presented in Figure 6.23 to
plot ionic radius versus atomic number.
or
Analyze and Conclude
and when an atom forms an anion?
2. Describe How do the ionic radii
1. Compare How does the size change when an atom forms a cation
vary
How do they vary within a group of nonmetals?
sponds to one period?
3. Describe What is the shape of a portion of the graph that corre-
different for Periods 2, 3, 4, and 5?
4. Compare and Contrast Is the trend across a period similar c
Ca
134
Be
160
Mg₂+
Ba
60-
113
2+
197
2
215
2+
ionic radii within groups and across periods.
5. Explain Propose explanations for the trends you have described for
224
Li
156-Atomic radius
lonic radius
51
62
81
95
B
Al
Ga
TI
33
143
In
3+
141
3+
3+
166
3+
172
3+
41
53
71
C
84
Si
109
4+
122
Ge
Sn
139
4+
V
Pb
4+
175
4+
Metal atom
Metalloid atom
Nonmetal atom
5A
N
146
212
62
222
70
As
74
3.
109
3-
122
within a group
Sb
3-
137
Bi
5+
170
5+
6A
O
140
184
66
198
2-
Se
221
120
Te
Cation
Anion
2-
139
105
S Cl
2-
181
of metals?
Po
2-
168
7A
133
F
62
196
220
1-
102
Br
I
1-
120
140
140
At
8A
50
He
70
Ne
Ar
111
Kr
130
Xe
Trends in E
What are the t
In Chapters 7 and 8,
compounds. Electro
erty that can be use-
reaction. This prop-
ability of an atom c
compound. Scienti
for electronegativi-
Table 6.2 lists
Groups 1A throug
the periodic table
many compound
Pauling won a N
was the first to d
In gen-
140
Rn
within a group
from left to rig
have low values
gases) have hig
metals are not
The least
negativity val
reacts, it tend
element is flu
tendency to
attracts the =
Figure e
among the
presented i
Table 6.2
H
2.1
Li
1.0
Να
0.9
K
0.
R
C
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