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Periodic Table of the Elements
Hover over an element to see its IUPAC name!
1
H
1.01
hydrogen
2
He
4.00
helium
3
Li
6.94
lithium
4
Be
9.01
beryllium
5
B
10.81
boron
6
C
12.01
carbon
7
N
14.01
nitrogen
8
O
16.00
oxygen
9
F
19.00
fluorine
10
Ne
20.18
neon
11
Na
22.99
sodium
12
Mg
24.30
magnesium
13
Al
26.98
aluminium
14
Si
28.08
silicon
15
P
30.97
phosphorus
16
S
32.06
sulfur
17
Cl
35.45
chlorine
18
Ar
39.95
argon
19
K
39.10
potassium
20
Ca
40.08
calcium
21
Sc
44.96
scandium
22
Ti
47.87
titanium
23
V
50.94
vanadium
24
Cr
52.00
chromium
25
Mn
54.94
manganese
26
Fe
55.84
iron
27
Co
58.93
cobalt
28
Ni
58.69
nickel
29
Cu
63.55
copper
30
Zn
65.38
zinc
31
Ga
69.72
gallium
32
Ge
72.63
germanium
33
As
74.92
arsenic
34
Se
78.97
selenium
35
Br
79.90
bromine
36
Kr
83.80
krypton
37
Rb
85.47
rubidium
38
Sr
87.62
strontium
39
Y
88.91
yttrium
40
Zr
91.22
zirconium
41
Nb
92.91
niobium
42
Mo
95.95
molybdenum
43
Tc
[97]
technetium
44
Ru
101.07
ruthenium
45
Rh
102.91
rhodium
46
Pd
106.42
palladium
47
Ag
107.87
silver
48
Cd
112.41
cadmium
49
In
114.82
indium
50
Sn
118.71
tin
51
Sb
121.76
antimony
52
Te
127.60
tellurium
53
I
126.90
iodine
54
Xe
131.29
xenon
55
Cs
132.91
caesium
56
Ba
137.33
barium
57
La
138.91
lanthanum
58
Ce
140.12
cerium
59
Pr
140.91
praseodymium
60
Nd
144.24
neodymium
61
Pm
[145]
promethium
62
Sm
150.36
samarium
63
Eu
151.96
europium
64
Gd
157.25
gadolinium
65
Tb
158.93
terbium
66
Dy
162.50
dysprosium
67
Ho
164.93
holmium
68
Er
167.26
erbium
69
Tm
168.93
thulium
70
Yb
173.04
ytterbium
71
Lu
174.97
lutetium
72
Hf
178.49
hafnium
73
Ta
180.95
tantalum
74
W
183.84
tungsten
75
Re
186.21
rhenium
76
Os
190.23
osmium
77
Ir
192.22
iridium
78
Pt
195.08
platinum
79
Au
196.97
gold
80
Hg
200.59
mercury
81
Tl
204.38
thallium
82
Pb
207.2
lead
83
Bi
208.98
bismuth
84
Po
[209]
polonium
85
At
[210]
astatine
86
Rn
[222]
radon
87
Fr
[223]
francium
88
Ra
[226]
radium
89
Ac
[227]
actinium
90
Th
232.04
thorium
91
Pa
231.04
protactinium
92
U
238.03
uranium
93
Np
[237]
neptunium
94
Pu
[244]
plutonium
95
Am
[243]
americium
96
Cm
[247]
curium
97
Bk
[247]
berkelium
98
Cf
[251]
californium
99
Es
[252]
einsteinium
100
Fm
[257]
fermium
101
Md
[258]
mendelevium
102
No
[259]
nobelium
103
Lr
[262]
lawrencium
104
Rf
[267]
rutherfordium
105
Db
[270]
dubnium
106
Sg
[269]
seaborgium
107
Bh
[270]
bohrium
108
Hs
[270]
hassium
109
Mt
[278]
meitnerium
110
Ds
[281]
darmstadtium
111
Rg
[281]
roentgenium
112
Cn
[285]
copernicium
113
Nh
[286]
nihonium
114
Fl
[289]
flerovium
115
Mc
[289]
moscovium
116
Lv
[293]
livermorium
117
Ts
[293]
tennessine
118
Og
[294]
oganesson
*
*
**
**
*
*
**
**
Metals
Metalloids
Nonmetals
Unknown
For AXE notation, enter your answer as AXmEn, where m = # of ligands connected to the central atom and n = # of unbonded electron pairs.
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