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TABLA PERIÓDICA ACTUALIZADA 2018

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IUPAC Periodic Table of the Elements
1
18
2
1
He
H
helium
hydrogen
1.008
[1.0078, 1.0082]
2
3
4
Li
lithium
Key:
atomic number
Be
beryllium
11
Na
magnesium
[24.304, 24.307]
24.305
19
K
20
Ca
17
5
6
7
8
9
21
nitrogen
O
oxygen
10.81
12.011
14.007
15.999
[12.009, 12.012]
[14.006, 14.008]
[15.999, 16.000]
13
Sc
carbon
N
[10.806, 10.821]
Al
3
C
conventional atomic weight
12
22.990
16
standard atomic weight
Mg
sodium
15
boron
name
9.0122
14
B
Symbol
6.94
[6.938, 6.997]
13
4
22
Ti
5
23
V
6
24
Cr
7
25
8
26
9
27
Mn
Fe
iron
cobalt
55.845(2)
58.933
potassium
calcium
scandium
titanium
vanadium
chromium
manganese
39.098
40.078(4)
44.956
47.867
50.942
51.996
54.938
Co
10
28
Ni
11
29
12
30
14
Si
aluminium
silicon
26.982
[28.084, 28.086]
15
P
31
32
Ge
10
F
Ne
18.998
20.180
fluorine
17
Cl
18
Ar
sulfur
32.06
35.45
39.95
30.974
[32.059, 32.076]
[35.446, 35.457]
[39.792, 39.963]
33
As
34
Se
chlorine
neon
phosphorus
28.085
Ga
16
S
4.0026
35
nickel
Cu
copper
Zn
Br
zinc
gallium
germanium
arsenic
selenium
bromine
58.693
63.546(3)
65.38(2)
69.723
72.630(8)
74.922
78.971(8)
[79.901, 79.907]
52
53
argon
36
Kr
krypton
79.904
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
rubidium
strontium
yttrium
zirconium
niobium
molybdenum
85.468
87.62
88.906
91.224(2)
92.906
95.95
55
56
57-71
72
73
74
Cs
Ba
caesium
barium
132.91
137.33
lanthanoids
Hf
Ta
W
43
Tc
technetium
75
Re
44
Ru
45
Rh
46
47
Pd
Ag
48
Cd
49
50
In
Sn
51
Sb
Te
I
83.798(2)
54
Xe
ruthenium
rhodium
palladium
silver
cadmium
indium
tin
antimony
tellurium
iodine
xenon
101.07(2)
102.91
106.42
107.87
112.41
114.82
118.71
121.76
127.60(3)
126.90
131.29
76
77
78
79
80
81
82
83
84
85
Os
Ir
Pt
Au
gold
mercury
thallium
lead
bismuth
196.97
200.59
[204.38, 204.39]
207.2
208.98
113
114
nihonium
flerovium
hafnium
tantalum
tungsten
rhenium
osmium
iridium
platinum
178.49(2)
180.95
183.84
186.21
190.23(3)
192.22
195.08
Hg
Tl
Pb
Bi
Po
polonium
At
astatine
86
Rn
radon
204.38
87
Fr
francium
88
Ra
radium
89-103
actinoids
104
Rf
rutherfordium
57
La
105
Db
dubnium
58
Ce
106
Sg
seaborgium
59
Pr
107
Bh
bohrium
60
Nd
lanthanum
cerium
praseodymium
neodymium
138.91
140.12
140.91
144.24
89
90
91
92
Ac
actinium
Th
Pa
U
thorium
protactinium
uranium
232.04
231.04
238.03
108
Hs
hassium
61
Pm
promethium
93
Np
neptunium
109
Mt
meitnerium
62
Sm
110
Ds
darmstadtium
63
Eu
111
Rg
roentgenium
64
Gd
112
Cn
copernicium
65
Tb
Nh
66
Dy
Fl
67
Ho
115
Mc
moscovium
68
Er
116
Lv
livermorium
69
Tm
117
Ts
tennessine
70
Yb
118
Og
oganesson
71
Lu
samarium
europium
gadolinium
terbium
dysprosium
holmium
erbium
thulium
ytterbium
lutetium
150.36(2)
151.96
157.25(3)
158.93
162.50
164.93
167.26
168.93
173.05
174.97
94
95
96
97
98
99
100
101
102
Pu
plutonium
Am
americium
Cm
curium
For notes and updates to this table, see www.iupac.org. This version is dated 1 December 2018.
Copyright © 2018 IUPAC, the International Union of Pure and Applied Chemistry.
Bk
berkelium
Cf
californium
Es
einsteinium
Fm
fermium
Md
mendelevium
No
nobelium
103
Lr
lawrencium
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