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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Using the group A periodic table how could we further elaborate the answer to the lewis dot structure question?
Transcribed Image Text:To figure out how many valence electrons each element has, use the Periodic Table. Remember, the
number of valance electrons for Group A elements is equal to the Group A number the element is in on
the Periodic Table.
1
IA
1A
1
H
3
Li
2
ΠΙΑ
2A
4
Be
11
12
Na Mg
3 4 5 6 7 8 9 10 11 12
IB IIB
18 2B
IIIB IVB
3B 4B
19 20 21 22
K Ca Sc Ti
37
38
39
Rb Sr Y
40
Zr
55 56
71
Cs Ba Lu
5282
72
Hf
VB VIB VIIB
5B 6B 7B
23
V
41
Nb
24 25
Cr Mn
73
Ta
42
Mo
43
Tc
74
W
26
Fe
VIII
8
27
Co
28
Ni
44 45 46
Ru
Rh
Pd
29
30
Cu Zn
75
76 77 78
Re Os Ir Pt
13
ΠΙΑ
3A
5
13
AI
14 15 16 17
IVA
VA VIA VIIA
4A
5A
6A 7A
Ga
6
с
14
31 32
Ge
7
N
15
33
As
8
O
16
S
34
Se
18
VIIIA
8A
2
He
47
48
49
50
Ag
Cd In Sn Sb
79
81
80
Au Hg
111
Tl
87 88 103
104
105
106
107
108 109 110
112
113
114
115
116
117 118
Fr Ra Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh FI MC LV Ts Og
9
10
F Ne
82
83
Pb Bi Po
17 18
CI
Ar
35 36
Br
Kr
51 52 53 54
Te
I
Xe
84 85 86
At
Rn
Transcribed Image Text:Mg.
The above image shows the very first step in the Lewis Dot Structure. "To draw a Lewis Structure,
start with the atomic symbol in the middle, then put dots around the symbol until all of the valence
electrons are represented." Mg is the element symbol for magnesium. The two dots in the image shows
valence electrons. Magnesium has two valence electrons in its outer shell.
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