The Periodic Table

Analytical testing dots
  1
IA

18
VIIIA
  1
H
2
IIA

13
IIIA
14
IVA
15
VA
16
VIA
17
VIIA
2
He
  3
Li
4
Be

5
B
6
C
7
N
8
O
9
F
10
Ne
  11
Na
12
Mg
3
IIIB
4
IVB
5
VB
6
VIB
7
VIIB
8
VIII
9
VIII
10
VIII
11
IB
12
IIB
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
  19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
  37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
  55
Cs
56
Ba
*
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
  87
Fr
88
Ra
**
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Uub
113
Uut
114
Uuq
115
Uup
116
Uuh
117
Uus
118
Uuo

Lanthanides 57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
Actinides 89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr

 

The Periodic Table

The arrangement of the periodic table demonstrates recurring 'periodic' chemical properties. Elements are listed in order of increasing atomic number (the number of protons in the atomic nucleus). Rows are arranged so elements with similar properties fall into the same vertical columns, or groups. According to quantum mechanical theories of electron configuration within atoms, each horizontal row, or period, in the table corresponded to the filling of a quantum shell of electrons. There are progressively longer periods farther down the table, grouping the elements into s-, p-, d- and f-blocks to reflect their electron configuration.

 

Click here for a Printer-friendly Periodic Table (PDF)...

Analytical testing dots

View the List of Elements by Atomic Mass...Analytical testing dots

Content from Wikipedia for educational use and displayed with permission under the GFDL.
Please report any inaccuracies to the Webmaster.