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PERIODIC TABLE



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
+1
H

Hydrogen


1.01
2He

Helium


4.00
3
+1
Li

Lithium


6.94
4
+2
Be

Beryllium


9.01
5
+3
B

Boron


10.81
6
2,4
C

Carbon


12.01
7
2,3,4,5
N

Nitrogen


14.01
8
-2
O

Oxygen


16.00
9
-1
F

Fluorine


19.00
10Ne

Neon


20.18
11
+1
Na

Sodium


22.99
12
+2
Mg

Magnesium


24.31
13
+3
Al

Aluminum


26.98
14
4
Si

Silicon


28.09
15
3,4,5
P

Phosphorus


30.97
16
-2,4,6
S

Sulfur


32.07
17
-1
Cl

Chlorine


35.45
18Ar

Argon


39.95
19
+1
K

Potas­sium


39.10
20
+2
Ca

Cal­cium


40.08
21
+3
Sc

Scan­dium


44.96
22
+3,4
Ti

Tita­nium


47.87
23
+2,3,45
V

Vana­dium


50.94
24
2,3,6
Cr

Chrom­ium


52.00
25
2,3,4,6,7
Mn

Manga­nese


54.94
26
2,3
Fe

Iron


55.85
27
2,3
Co

Cobalt


58.93
28
2,3
Ni

Nickel


58.69
29
1,2
Cu

Copper


63.55
30
2
Zn

Zinc


65.39
31
+3
Ga

Gallium


69.72
32
4
Ge

Germa­nium


72.61
33
3,5
As

Arsenic


74.92
34
-2,4,6
Se

Sele­nium


78.97
35
-1,5
Br

Bromine


79.90
36Kr

Kryp­ton


83.80
37
+1
Rb

Rubid­ium


85.47
38
+2
Sr

Stront­ium


87.62
39
+3
Y

Yttrium


88.91
40
+4
Zr

Zirco­nium


91.22
41
+3,5
Nb

Nio­bium


92.91
42
2,4,5,6
Mo

Molyb­denum


95.95
43
7
Tc

Tech­netium


97.91
44
2,3,4,6,8
Ru

Ruthe­nium


101.07
45
2,3,4
Rh

Rho­dium


102.91
46
2,4
Pd

Pallad­ium


106.42
47
1
Ag

Silver


107.87
48
2
Cd

Cad­mium


112.41
49
+3
In

Indium


114.82
50
2,4
Sn

Tin


118.71
51
3,5
Sb

Anti­mony


121.76
52
2,4,6
Te

Tellur­ium


127.60
53
-1,5,7
I

Iodine


126.90
54Xe

Xenon


131.29
55
+1
Cs

Cae­sium


132.91
56
+2
Ba

Barium


137.33
57 *
+3
La

Lan­thanum


138.91
72
+4
Hf

Haf­nium


178.49
73
+5
Ta

Tanta­lum


180.95
74
2,4,5,6
W

Tung­sten


183.84
75
1,2,4,6,7
Re

Rhe­nium


186.21
76
2,3,4,6,8
Os

Os­mium


190.23
77
2,3,4,6
Ir

Iridium


192.22
78
2,4
Pt

Plat­inum


195.08
79
1,3
Au

Gold


196.97
80
1,2
Hg

Mer­cury


200.59
81
1,3
Tl

Thallium


204.38
82
2,4
Pb

Lead


207.20
83
3,5
Bi

Bis­muth


208.98
84
2,4
Po

Polo­nium


208.98
85
1,3,5,7
At

Asta­tine


209.99
86Rn

Radon


222.02
87
+1
Fr

Fran­cium


223.02
88
+2
Ra

Ra­dium


226.03
89 **
+3
Ac

Actin­ium


227.03
104
+4
Rf

Ruther­fordium


261
105Db

Dub­nium


262
106Sg

Sea­borgium


263
107Bh

Bohr­ium


262
108Hs

Has­sium


265
109Mt

Meit­nerium


266
110Ds

Darm­stadtium


281
111Rg

Roent­genium


280
112Cn

Coper­nicium


285
113Uut

Unun­trium


284
114Fl

Flerov­ium


289
115Uup

Unun­pentium


288
116Lv

Liver­morium


293
117Uus

Unun­septium


294
118Uuo

Unun­octium


294
* 58
3,4
Ce

Cerium


140.12
59
3,4
Pr

Praseo­dymium


140.91
60
3
Nd

Neo­dymium


144.24
61
3
Pm

Prome­thium


144.91
62
2,3
Sm

Sama­rium


150.36
63
2,3
Eu

Europ­ium


151.97
64
3
Gd

Gadolin­ium


157.25
65
3,4
Tb

Ter­bium


158.93
66
3
Dy

Dyspro­sium


162.50
67
3
Ho

Hol­mium


164.93
68
3
Er

Erbium


167.26
69
2,3
Tm

Thulium


168.93
70
2,3
Yb

Ytter­bium


173.05
71Lu

Lute­tium


174.97
** 90
4
Th

Thor­ium


232.04
91
4,5
Pa

Protac­tinium


231.04
92
3,4,5,6
U

Ura­nium


238.03
93Np

Neptu­nium


237
94Pu

Pluto­nium


244
95Am

Ameri­cium


243
96Cm

Curium


247
97Bk

Berkel­ium


247
98Cf

Califor­nium


251
99Es

Einstei­nium


252
100Fm

Fer­mium


257
101Md

Mende­levium


258
102No

Nobel­ium


259
103Lr

Lawren­cium


262

Metals
Metalloids
Non-Metals

MASSES ROUNDED TO HUNDREDTHS, BASED ON UPDATED IUPAC VALUES, 2013
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