5. táblázat
Az elemek atomtömege
| Elem |
Vegyjel |
Rendszáma |
Atomtömege |
| Aktínium |
Ac |
89 |
227,0278 |
| Aluminium |
Al |
13 |
26,98154 |
| Americium |
Am |
95 |
243,0614 |
| Antimon |
Sb |
51 |
121,75 |
| Arany |
Au |
79 |
196,96654 |
| Argon |
Ar |
18 |
39,948 |
| Arzén |
As |
33 |
74,9216 |
| Asztácium |
At |
85 |
209,9871 |
| Bárium |
Ba |
56 |
137,327 |
| Berillium |
Be |
4 |
9,012182 |
| Berkélium |
Bk |
97 |
247,0703 |
| Bizmut |
Bi |
83 |
208,98037 |
| Bór |
B |
5 |
10,811 |
| Bróm |
Br |
35 |
79,904 |
| Cérium |
Ce |
58 |
140,115 |
| Cézium |
Cs |
55 |
132,905343 |
| Cink |
Zn |
30 |
65,39 |
| Cirkónium |
Zr |
40 |
91,224 |
| Diszprózium |
Dy |
66 |
162,50 |
| Einsteinium |
Es |
99 |
252,0820 |
| Erbium |
Er |
68 |
167,26 |
| Európium |
Eu |
63 |
151,965 |
| Ezüst |
Ag |
47 |
107,8682 |
| Fermium |
Fm |
100 |
257,0951 |
| Fluor |
F |
9 |
18,9984032 |
| Foszfor |
P |
15 |
30,973762 |
| Francium |
Fr |
87 |
223,0197 |
| Gadolinium |
Gd |
64 |
157,25 |
| Gallium |
Ga |
31 |
69,723 |
| Germánium |
Ge |
32 |
72,61 |
| Hafnium |
Hf |
72 |
178,49 |
| Hélium |
He |
2 |
4,002602 |
| Hidrogén |
H |
1 |
1,00794 |
| Higany |
Hg |
80 |
200,59 |
| Holmium |
Ho |
67 |
164,93032 |
| Indium |
In |
49 |
114,82 |
| Iridium |
Ir |
77 |
192,22 |
| Itterbium |
Yb |
70 |
173,04 |
| Ittrium |
Y |
39 |
88,90585 |
| Jód |
I |
53 |
126,90447 |
| Kadmium |
Cd |
48 |
112,411 |
| Kalcium |
Ca |
20 |
40,078 |
| Kalifornium |
Cf |
98 |
251,0796 |
| Kálium |
K |
19 |
39,0983 |
| Kén |
S |
16 |
32,066 |
| Kobalt |
Co |
27 |
58,9332 |
| Klór |
Cl |
17 |
35,4527 |
| Króm |
Cr |
24 |
51,9961 |
| Kripton |
Kr |
36 |
83,80 |
| Kürium |
Cm |
96 |
247,0703 |
| Lantán |
La |
57 |
138,9055 |
| Laurencium |
Lr |
103 |
260,1053 |
| Lítium |
Li |
3 |
6,941 |
| Lutécium |
Lu |
71 |
174,967 |
| Magnézium |
Mg |
12 |
24,305 |
| Mangán |
Mn |
25 |
54,93805 |
| Mendelévium |
Md |
101 |
258,0986 |
| Molibdén |
Mo |
42 |
95,94 |
| Nátrium |
Na |
11 |
22,989768 |
| Neodimium |
Nd |
60 |
144,24 |
| Neon |
Ne |
10 |
20,1797 |
| Neptunium |
Np |
93 |
237,0482 |
| Nikkel |
Ni |
28 |
58,69 |
| Nióbium |
Nb |
41 |
92,90638 |
| Nitrogén |
N |
7 |
14,00674 |
| Nobélium |
No |
102 |
259,1009 |
| Ólom |
Pb |
82 |
207,2 |
| Ón |
Sn |
50 |
118,710 |
| Ozmium |
Os |
76 |
190,2 |
| Oxigén |
O |
8 |
15,9994 |
| Palládium |
Pd |
46 |
106,42 |
| Platina |
Pt |
78 |
195,08 |
| Plutónium |
Pu |
94 |
244,0642 |
| Polonium |
Po |
84 |
208,9824 |
| Prazeodimium |
Pr |
59 |
140,90765 |
| Promécium |
Pm |
61 |
146,9151 |
| Protaktinium |
Pa |
91 |
231,0359 |
| Rádium |
Ra |
88 |
226,0254 |
| Radon |
Rn |
86 |
222,0176 |
| Rénium |
Re |
75 |
186,207 |
| Réz |
Cu |
29 |
63,546 |
| Ródium |
Rh |
45 |
102,9055 |
| Rubidium |
Rb |
37 |
85,4678 |
| Ruténium |
Ru |
44 |
101,07 |
| Stroncium |
Sr |
38 |
87,62 |
| Szamárium |
Sm |
62 |
150,36 |
| Szelén |
Se |
34 |
78,96 |
| Szén |
C |
6 |
12,011 |
| Szilícium |
Si |
14 |
28,0855 |
| Szkandium |
Sc |
21 |
44,95591 |
| Tallium |
Tl |
81 |
204,3833 |
| Tantál |
Ta |
73 |
180,9497 |
| Technécium |
Tc |
43 |
98,9063 |
| Tellur |
Te |
52 |
127,60 |
| Terbium |
Tb |
65 |
158,92534 |
| Titán |
Ti |
22 |
47,88 |
| Tórium |
Th |
90 |
232,0381 |
| Túlium |
Tm |
69 |
168,93421 |
| Unnilennium |
Une |
109 |
266 |
| Unnilhexium |
Unh |
106 |
263 |
| Unniloctium |
Uno |
108 |
265 |
| Unnilpentium |
Unp |
105 |
262,1138 |
| Unnilquadium |
Unq |
104 |
261,1087 |
| Unnilseptium |
Uns |
107 |
262 |
| Uránium |
U |
92 |
238,0289 |
| Vanádium |
V |
23 |
50,9415 |
| Vas |
Fe |
26 |
55,847 |
| Wolfram |
W |
74 |
183,85 |
| Xenon |
Xe |
54 |
131,29 |