1A 8A н -73 Не 2A 6A 7A ЗА 5A B Ne Li Be -27 -122 >0 -141-328 >0 -60 Na Mg |-53 >0 Al CI Si Ar -43 -134 -72 -200 -349 >0 K -48 Ca -2 As Se -30 -119 -78 -195-325 >0 Ga Ge Br Kr Sr -5 Rb In Sn Sb Te Xe -30 -107-103–190 -295 >0 -7 A Figure 7.12 Electron affinity in kJ/mol for selected s- and p-block elements.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Group 4A elements have much more negative electron
affinities than their neighbors in groups 3A and 5A (see
Figure 7.12). Which of the following statements best explains
this observation? (i) The group 4A elements have much higher
first ionization energies than their neighbors in groups 3A
and 5A. (ii) The addition of an electron to a group 4A element
leads to a half-filled np3 outer electron configuration.
(iii) The group 4A elements have unusually large atomic radii.
(iv) The group 4A elements are easier to vaporize than are
the group 3A and 5A elements.

1A
8A
н
-73
Не
2A
6A
7A
ЗА
5A
B
Ne
Li
Be
-27 -122 >0
-141-328 >0
-60
Na Mg
|-53 >0
Al
CI
Si
Ar
-43 -134 -72 -200 -349 >0
K
-48
Ca
-2
As
Se
-30 -119 -78 -195-325 >0
Ga
Ge
Br
Kr
Sr
-5
Rb
In
Sn
Sb
Te
Xe
-30 -107-103–190 -295 >0
-7
A Figure 7.12 Electron affinity in kJ/mol for selected s- and p-block elements.
Transcribed Image Text:1A 8A н -73 Не 2A 6A 7A ЗА 5A B Ne Li Be -27 -122 >0 -141-328 >0 -60 Na Mg |-53 >0 Al CI Si Ar -43 -134 -72 -200 -349 >0 K -48 Ca -2 As Se -30 -119 -78 -195-325 >0 Ga Ge Br Kr Sr -5 Rb In Sn Sb Te Xe -30 -107-103–190 -295 >0 -7 A Figure 7.12 Electron affinity in kJ/mol for selected s- and p-block elements.
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