3 Classes of Elements
1
Class
2
3
4
5
6
18
Non-Metal
1
2
Metalloid
H
3
2
13 14
15 16
17
Li
Be
6.941
9.012
5
B
11
12
Na
Mg
22.990
24.305
19
20
21
3
4
22
Ca
Sc
39.098
40.078
44.956
47.87
37
38
39
40
Y
Zr
K
He
4.003
4
Ti
5
23
6
25
Cr
Mn
51.996
54.938
41
42
43
Nb
Mo
Tc
V
50.942
Rb
Sr
87.62
88.906
91.224
92.906
95.94
55
56
71
72
73
Cs
Ba
Lu
137.327
174.967
Hf
87
88
103
Fr
Ra
(223)
(226)
Lr
(262)
7
24
85.468
132.905
7
Metal
1
1.008
Color
Ta
8
26
Fe
55.845
44
9
10
11 12
27
28
Co
Ni
58.69
63.546
45
58.933
6
C
7
N
8
O
9
10
F
Ne
10.811
12.001
14.007
15.999
18.998
20.180
13
14
15
16
17
18
Al
Si
P
S
Cl
Ar
26.982
28.086
30.974
32.066
35.453
39.948
31
32
33
34
35
36
29
30
Cu
Zn
65.39
69.723
Ga
Ge
72.61
74.922
As
Se
78.96
79.904
Br
Kr
46
47
48
49
50
51
52
53
54
83.80
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
(98)
101.07
102.906
106.42
107.868
112.4
114.818
118.710
121.760
127.60
126.904
131.29
74
75
76
77
78
79
80
81
82
83
84
85
86
Ru
178.49
180.95
183.84
W
Re
Os
190.23
192.217
195.078
Pt
Au
Hg
200.59
204.383
Tl
Pb
207.2
208.980
Bi
Po
At
Rn
104
105
106
107
108
109
110
111
113
114
115
118
Db
Sg
Bh
Hs
Mt
Ds
Rg
Uut
Uuq
Uup
116
Uuh
117
Rf
112
Uub
Uus
Uuo
(266)
(264)
(269)
(269)
(272)
(284)
(289)
(288)
68
69
70
(261)
Lanthanides
Actinides
(262)
57
58
La
138.906
89
Ac
(227)
186.207
Ir
(268)
196.967
(285)
59
60
61
62
63
64
65
66
67
Ce
Pr
Nd
Sm
Eu
Gd
Tb
Dy
Ho
140.908
144.24
Pm
140.116
90
91
(145)
150.36
92
93
94
95
96
Np
Pu
Am
Cm
Th
Pa
U
232.038
231.036
238.029
(237)
(244)
151.964
(243)
157.25
(247)
158.925
162.50
97
98
Bk
(247)
Cf
(251)
(209)
(292)
(210)
(222)
Er
Tm
164.930
167.26
168.934
173.04
99
100
101
102
Es
Fm
Md
No
(257)
(258)
(259)
(252)
Yb
Using this as a guide, color
code your periodic table to
show the three classes. Start
by highlighting the “zig-zag.”