3.
Lithium
6.938
11.
Sodium
22.990
19.
Potassium
39.098
37.
Rubidium
85.468
55.
Cesium
132.91
87.
Francium
(223)
4.
Beryllium
9.012
12.
Magnesium
9.012
20.
Calcium
40.078
38.
Strondium
87.62
56.
Barium
137.33
88.
Radium
(226)
21.
Scandium
44.956
39.
Yitrium
88.906
Silicon
28.084
22.
Titanium
47.867
23.
Vanadium
50.942
24
Chromium
51.996
25.
Mangenese
54.938
26.
Iron
55.845
26.
Cobalt
58.933
28.
Nickel
58.693
29.
Copper
63.546
30.
Zinc
65.38
40.
Zirconium
91.224
41.
Niobium
92.906
42.
Molybdenum
95.95
34.
Technetium
98.9062
44.
Ruthenium
101.07
45
Rhodium
102.91
46.
Palladium
106.42
47.
Silver
107.87
48.
cadmium
112.41
72.
Hafnium
178.49
73.
Tantalum
180.95
74.
Tungsten
183.84
75.
Rhenium
186.21
76.
Osmium
190.23
77.
Iridium
192.22
78.
Platinum
195.08
79.
Gold
196.97
80.
Mercury
200.59
104.
Rutherfordium
(261)
105.
Dubnium
(262)
106.
Seaborgium
(266)
107.
Bohrium
(264)
108.
Hassium
(269)
109.
Meitnerium
(268)
110.
Damstadtium
(268)
111.
Roentgenium
(268)
112.
Copernicium
(268)
2.
Helium
4.0026
5.
Boron
(264)
6.
Carbon
12.009
7.
Nitrogen
14.006
8.
Oxygen
15.999
9.
Flourine
18.998
10.
Neon
20.180
13.
Aluminium
26.982
14.
Silicon
28.084
15.
Phosphorus
30.974
16.
Sulfur
32.059
17.
chlorine
35.446
18.
Argon
39.948
31.
Gallium
69.723
32.
Germanium
72.63
33.
Arsenic
74.922
34.
Selenium
78.96
35.
Bromine
79.904
36.
Krypton
83.798
49.
Indium
114.82
50.
Tin
118.71
51.
Antimony
121.76
52.
Tellerium
(264)
53.
Iodine
126.90
54.
Xenon
131.29
81.
Thallium
204.38
82.
Lead
207.2
83.
Bismuth
208.98
84.
Polonium
(209)
85.
Astatine
(210)
86.
Radon
(222)
113.
Ununtrium
(268)
114.
Flerovium
(268)
115.
Ununpentium
(268)
116.
Livermorium
(268)
117.
Ununseptium
(268)
118.
Ununoctium
(268)