Page 70 - Chemistry eBook

There are
many
H –1
KEY
Group/Family
1
1
Periodic Table of the Elem
1.00794 +1
5 RbSr Y Mo
RuRhPdAgCd
+3 91.224 +4 92.9064 +3 95.9 Zr Nb +5
12.011 –4
C +2 +4
Selected Oxidation States
Atomic Mass Symbol
2 Li Be Electron Configuration 2-4 345
1
6.941 +1 9.01218 +2
Relative atomic masses are based 12
Group
on C = 12 (exact)
Note: Numbers in parentheses
1 2
Atomic Number
6
GROUP/FAMILY: The vertical columns on the Periodic Table
are mass numbers of the most 10 stable or common isotope.
2-1
2- 26
2- +2 69
2-2
22.98977 +1 24.305 +2
• Each group has the same number of valence electrons.
• Elements11 12
3 Na Mg
G r o u p
n the
me grou3p have 4similar5chemic6al 39.0983 +1 40.08 +2 44.9559 +3 47.867 +2 50.9415 +2 51.996
+6
2-8
a
7
8
9
10 11
+2 58.693 +2 63.546
12
65.409
1
i
s
-1
2
-8-
2
properties (much more than the elements within a
55.845
+2 58.9332
+3 +3 +3 +2
54.9380 +2 +4
Mn+3
+7 2-8-13-2
25
(98) +4 +7
43
Tc+6
2-8-18-13-2
186.207 +4 +7
75
Re+6
-18-32-13-2
(272)
Bh 107
+2 +4 +4 +6
+1
4 K Ca Sc Ti+3 V+3 +3
FePeopCleointheNi Cu Zn
26 27 28 29 30 3
Cr period).19 20 21 22 23 24
2-8-8-1 2-8-8-2 2-8-9-2 2-8-10-2 2-8-11-2 2-8-13-1 85.4678 +1 87.62 +2 88.9059 4
-2
p
2-8-16-2 2-8-18-1 2-8-18-2 2-
+5
s
of
2-8-14
2
ame g
r
o
-8
friends/family
-1
u
5-
2
101.07 +3 102.906 +3 106.42 +2 107.868 +1 112.41
+2 11
are the most
+4
this topi
in the same
44 45 46 47 48 4 2-8-18-8-12-8-18-8-22-8-18-9-28-13-12-8-18-15-12-8-18-16-12-8-18-182-8-18-18-12-8-18-18-22-
37
38 39
similar to each
Regents questions on
132.905 +1 137.33 +2 138.9055 84
other. Elements
40 41 42
2-8-18-10-2 2-8-18-12-1 2-8-1 +3 178.49 +4 180.948 +5 183.
+6
2-8-18-18-8-12-8-18-18-8-22-8-18-18-92-12-2-18-32-14-2-18-32-15-2-18-32-17-1-18-32-18-1-18-32-18-2-1
6 Cs Ba La W
Os Ir Pt Au Hg
c
5
.
72Hf 73Ta 74
190.23 +3 192.217 +3 195.08 +2 196.967 +1 200.59 +1 20 +4 +4 +4 +3 +2
5
56 57
76 77 78 79 80 8
(223) +1 (226) +2 (227) Fr Ra Ac
group/family are
-2 *18-32-10-2 -18-32-11-2 -18-3 +3 (261) +4 (262) (266)
7
Hs Mt Ds Rg Cn
87 88 89 104 105
to each other.
-18-32-18-8-1 -18-32-18-8-2 -18-32-18-9-2
108 109 110 111 112 1
Rf Db
140.116 +3
+3 150.36
+2 151.964 +2 157.25 +3 158.925
Sg 106
(277) (276) (281) (280) (285) (2 the most similar
140.908 +3 144.24
+3 16
6
+3 (145)
+4 +3 +3
Ce Pr Nd Pm Sm Eu Gd Tb
58 59 60 61 62 63 64
65
232.038 +4 231.036 +4 238.029 +3 (237) +3 (244) +3 (243) +3 +5+4+4+4+4 +5 +5 +5 +5
(247)
+3 (247) +3 (2 +4
Th Pa U Np Pu Am+6 Cm Bk
e
Reference Tables for Physical Setting/Chemistry – 2011 Edition
1
U
70 © UNIT 3: PERIODIC TABLE OF ELEMENTS
P eriod