Nº Atômico



SIMBOLO (nome)



Massa Atômica  

1
1
18
1 H1.0079
2
13
14
15
16
17
2 He4.0026
2
3 Li 6.941
4 Be 9.0121
5 B 10.811
6 C 12.0107
7 N 14.0067
8 O 15.9994
9 F 18.9984
10 Ne 20.1797
3
11 Na 22.9897
12 Mg 24.3050
3
4
5
6
7
8
9
10
11
12
13 Al 26.9815
14 Si 28.0855
15 P 30.9737
16 S 32.065
17 Cl 35.453
18 Ar 39.948
4
19 K 39.0983
20 Ca 40.078
21 Sc 44.9559
22 Ti 47.867
23 V 50.9415
24 Cr 51.9961
25 Mn 54.9380
26 Fe 55.845
27 Co 58.9331
28 Ni 58.6934
29 Cu 63.546
30 Zn 65.409
31 Ga 69.723
32 Ge 72.64
33 As 74.9216
34 Se 78.96
35 Br 79.904
36 Kr 83.798
5
37 Rb 85.467
38 Sr 87.62
39 Y 88.905
40 Zr 91.224
41 Nb 92.906
42 Mo 95.94
43 Tc 98.906
44 Ru 101.07
45 Rh 102.905
46 Pd 106.42
47 Ag 107.868
48 Cd 112.411
49 In 114.818
50 Sn 118.710
51 Sb 121.760
52 Te 127.60
53 I 126.904
54 Xe 131.293
6
55 Cs 132.905
56 Ba 137.327

57 a 71

A

as
57a 71
72 Hf 178.49
73 Ta 180.947
74 W 183.84
75 Re 186.207
76 Os 190.23
77 Ir 192.217
78 Pt 195.084
79 Au 196.966
80 Hg 200.59
81 Tl 204.383
82 Pb 207.2
83 Bi 208.9804
84 Po 208.9824
85 At 209.9871
86 Rn 222.0176
7
87 Fr 223.0197
88 Ra 226.0254

89 a 103

A

as
89 a 103
104 Rf 261
105 Db 262
106 Sg 262
107 Bh 264
108 Hs 269
109 Mt 268
110 Ds 281.1620
111 Rg 281.1684
112 Cn 285.1744
113 Nh 286.1810
114 Fl 287.1904
115 Mc 288.1943
116 Lv 291.2045
117 Ts 294.2104
118 Og 294.2139
57 La 138.905
58 Ce 140.116
59 Pr 140.904
60 Nd 144.242
61 Pm 146.915
62 Sm 150.36
63 Eu 151.964
64 Gd 157.25
65 Tb 158.925
66 Dy 162.500
67 Ho 164.93
68 Er 167.259
69 Tm 168.934
70 Yb 173.04
71 Lu 174.967
89 Ac 227.0278
90 Th 232.0380
91 Pa 231.0358
92 U 238.0289
93 Np 237.0482
94 Pu 244.0642
95 Am 243.0614
96 Cm 247.0703
97 Bk 247.0703
98 Cf 251.0796
99 Es 252.0829
100 Fm 257.0951
101 Md 258.0951
102 No 259.1009
103 Lr 266.1193