H
1 1s
1A 1 2A 4
Los Alamos National Laboratory Chemistry Division
Be
beryllium
[He]2s2
hydrogen
1.008
Li
11
3
Periodic Table of the Elements
He
[He]2s22p3
8A 2
1s2
3A 5
[He]2s22p1
lithium
[He]2s1
B
6.941
9.012
10.81
boron
[He]2s22p2
C
4A 6
N
15
5A 7
6A 8
carbon
12.01
nitrogen
[He]2s22p4
O
16
7A 9
[He]2s22p5
helium
4.003
F
Ne
20.18
neon
10
14.01
oxygen
16.00
fluorine
[He]2s22p6
19.00
Na Mg
sodium
[Ne]3s1
12
22.99
magnesium
[Ne]3s2
24.31
potassium
[Ar]4s1
K
19
Ca
calcium
[Ar]4s2
20
39.10
40.08
scandium
[Ar]4s23d1
Sc
39
3B 21
[Ar]4s23d2
Ti
40
4B 22
5B 23
vanadium
[Ar]4s23d3
V
44.96
titanium
47.88
50.94
chromium
[Ar]4s13d5
Cr
42
6B 24
Mn
54.94
7B 25
52.00
manganese
[Ar]4s23d5
[Ar]4s23d6
Fe
iron
26
[Ar]4s23d7
Co
58.93
cobalt
8B 27
[Ar]4s23d8
Ni
58.69
nickel
28
Cu
63.55
copper
11B 29
[Ar]4s13d10
[Ar]4s23d10
Zn
65.39
zinc
12B 30
aluminum
[Ne]3s23p1
Al
31
13
[Ne]3s23p2
Si
32
14
26.98
28.09
silicon
phosphorus
[Ne]3s23p3
P
[Ne]3s23p4
S
30.97
32.07
sulfur
[Ne]3s23p5
Cl
35
17
chlorine
[Ne]3s23p6
Ar
39.95
argon
18
35.45
[Ar]4s23d104p1
Ga
69.72
gallium
[Ar]4s23d104p2
Ge
72.58
55.85
germanium
[Ar]4s23d104p3
As
74.92
arsenic
33
[Ar]4s23d104p4
Se
78.96
34
selenium
[Ar]4s23d104p5
Br
53
bromine
[Ar]4s23d104p6
Kr
83.80
36
79.90
krypton
Rb
rubidium
[Kr]5s1
37
Sr
56
38
85.47
strontium
[Kr]5s2
[Kr]5s24d1
Y
87.62
yttrium
88.91
zirconium
[Kr]5s24d2
Zr
91.22
Nb Mo
[Kr]5s14d4
41
niobium
92.91
molybdenum
[Kr]5s14d5
95.94
technetium
[Kr]5s24d5
Tc
(98)
43
Ru
101.1
44
ruthenium
[Kr]5s14d7
Rh
rhodium
45
[Kr]5s14d8
Pd
106.4
46
102.9
palladium
[Kr]4d10
Ag
107.9
silver
47
[Kr]5s14d10
[Kr]5s24d10
Cd
112.4
48
cadmium
[Kr]5s24d105p1
In
81
49
114.8
indium
[Kr]5s24d105p2
Sn
118.7
tin
50
[Kr]5s24d105p3
Sb
121.8
51
antimony
[Kr]5s24d105p4
Te
127.6
52
tellurium
[Kr]5s24d105p5
I
126.9
iodine
[Kr]5s24d105p6
Xe
131.3
xenon
54
Cs
cesium
[Xe]6s1
55
Ba
137.3
barium
[Xe]6s2
132.9
lanthanum
[Xe]6s25d1
La* Hf
138.9
hafnium
57
72
[Xe]6s24f145d2
[Xe]6s24f145d3
Ta
180.9
73
178.5
tantalum
[Xe]6s24f145d4
W
74
tungsten
[Xe]6s24f145d5
Re
186.2
75
183.9
rhenium
[Xe]6s24f145d6
Os
osmium
76
[Xe]6s24f145d7
Ir
77
190.2
iridium
[Xe]6s14f145d9
Pt
195.1
78
190.2
platinum
[Xe]6s14f145d10
Au
197.0
gold
79
[Xe]6s24f145d10
Hg
mercury
80
[Xe]6s24f145d106p1
Tl
200.5
thallium
[Xe]6s24f145d106p2
Pb
207.2
lead
82
[Xe]6s24f145d106p3
Bi
83
204.4
bismuth
[Xe]6s24f145d106p4
Po
(209)
84
208.9
polonium
[Xe]6s24f145d106p5
At
85
astatine
[Xe]6s24f145d106p6
Rn
(222)
radon
86
(210)
Fr
87
francium
[Rn]7s1
Ra Ac~ Rf
radium (226)
[Rn]7s2 [Rn]7s26d1
88
89
104
(257)
(223)
actinium (227)
rutherfordium
[Rn]7s25f146d2
[Rn]7s25f146d3
Db
dubnium (260)
105
106
[Rn]7s25f146d4
Sg
seaborgium (263)
[Rn]7s25f146d5
Bh
bohrium (262)
107
[Rn]7s25f146d6
Hs
hassium (265)
108
[Rn]7s25f146d7
Mt
109
meitnerium (266)
[Rn]7s15f146d9
Ds Uuu Uub
(272) (277)
110
111
112
Uuq
(296)
114
Uuh
(298)
116
Uuo
(?)
118
darmstadtium (271)
Lanthanide Series*
[Xe]6s24f15d1
Ce
140.1
cerium
58
Pr
91
59
praseodymium
[Xe]6s24f3
Nd Pm Sm Eu
neodymium
[Xe]6s24f4
60
61
62
63
140.9
Actinide Series~
Th
thorium
90
144.2
[Rn]7s26d2
232.0
protactinium (231)
[Rn]7s25f26d1
Pa
[Rn]7s25f36d1
U
92
promethium (147)
[Xe]6s24f5
uranium (238)
[Rn]7s25f46d1
Np
93
samarium (150.4)
[Xe]6s24f6
europium
[Xe]6s24f7
[Xe]6s24f75d1
Gd
157.3
64
Tb
terbium
65
neptunium (237)
plutonium (242)
[Rn]7s25f6
Pu Am Cm
americium (243)
[Rn]7s25f7
94
152.0
gadolinium
[Xe]6s24f9
Dy
162.5
66
158.9
dysprosium
[Xe]6s24f10
Ho
holmium
67
[Xe]6s24f11
[Xe]6s24f12
Er
erbium
68
Tm
thulium
69
[Xe]6s24f13
[Xe]6s24f14
Yb
173.0
70
164.9
95
96
[Rn]7s25f76d1
Bk
97
curium (247)
berkelium (247)
[Rn]7s25f9
californium (249)
[Rn]7s25f10
Cf
98
einsteinium (254)
[Rn]7s25f11
Es
99
Fm Md No
[Rn]7s25f12
100
167.3
168.9
ytterbium
[Xe]6s24f145d1
Lu
175.0
71
lutetium
101
102
fermium (253)
mendelevium (256)
[Rn]7s25f13
[Rn]7s25f14
nobelium (254)
[Rn]7s25f146d1
Lr
103
lawrencium (257)
element names in blue are liquids at room temperature element names in red are gases at room temperature element names in black are solids at room temperature