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Periodinė elementų lentelė.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
I
1 1
H
Vandenilis
1.008
2 2
He
Helis
4.0026
II
3 2
1
Li
Litis
6.94
4 2
2
Be
Berilis
9.0122
5 2
3
B
Boras
10.81
6 2
4
C
Anglis
12.011
7 2
5
N
Azotas
14.007
8 2
6
O
Deguonis
15.999
9 2
7
F
Fluoras
18.9984
10 2
8
Ne
Neonas
20.1798
III
11 2
8
1
Na
Natris
22.9898
12 2
8
2
Mg
Magnis
24.305
13 2
8
3
Al
Aliuminis
26.9815
14 2
8
4
Si
Silicis
28.085
15 2
8
5
P
Fosforas
30.9738
16 2
8
6
S
Siera
32.06
17 2
8
7
Cl
Chloras
35.45
18 2
8
8
Ar
Argonas
39.9481
IV
19 2
8
8
1
K
Kalis
39.0983
20 2
8
8
2
Ca
Kalcis
40.0784
21 2
8
9
2
Sc
Skandis
44.9559
22 2
8
10
2
Ti
Titanas
47.8671
23 2
8
11
2
V
Vanadis
50.9415
24 2
8
13
1
Cr
Chromas
51.9962
25 2
8
13
2
Mn
Manganas
54.938
26 2
8
14
2
Fe
Geležis
55.8452
27 2
8
15
2
Co
Kobaltas
58.9332
28 2
8
16
Ni
Nikelis
58.6934
29 2
8
18
1
Cu
Varis
63.5463
30 2
8
18
2
Zn
Cinkas
65.382
31 2
8
18
3
Ga
Galis
69.7231
32 2
8
18
4
Ge
Germanis
72.6308
33 2
8
18
5
As
Arsenas
74.9216
34 2
8
18
6
Se
Selenas
78.9718
35 2
8
18
7
Br
Bromas
79.904
36 2
8
18
8
Kr
Kriptonas
83.7982
V
37 2
8
18
8
1
Rb
Rubidis
85.4678
38 2
8
18
8
2
Sr
Stroncis
87.621
39 2
8
18
9
2
Y
Itris
88.9058
40 2
8
18
10
2
Zr
Cirkonis
91.2242
41 2
8
18
12
1
Nb
Niobis
92.9064
42 2
8
18
13
1
Mo
Molibdenas
95.951
43 2
8
18
13
2
Tc
Technecis
[98]
44 2
8
18
15
1
Ru
Rutenis
101.072
45 2
8
18
16
1
Rh
Rodis
102.9055
46 2
8
18
18
Pd
Paladis
106.421
47 2
8
18
18
1
Ag
Sidabras
107.8682
48 2
8
18
18
2
Cd
Kadmis
112.4144
49 2
8
18
18
3
In
Indis
114.8181
50 2
8
18
18
4
Sn
Alavas
118.7107
51 2
8
18
18
5
Sb
Stibis
121.7601
52 2
8
18
18
6
Te
Telūras
127.603
53 2
8
18
18
7
I
Jodas
126.9045
54 2
8
18
18
8
Xe
Ksenonas
131.2936
VI
55 2
8
18
18
8
1
Cs
Cezis
132.9055
56 2
8
18
18
8
2
Ba
Baris
137.3277
57–71
72 2
8
18
32
10
2
Hf
Hafnis
178.492
73 2
8
18
32
11
2
Ta
Tantalas
180.9479
74 2
8
18
32
12
2
W
Volframas
183.841
75 2
8
18
32
13
2
Re
Renis
186.2071
76 2
8
18
32
14
2
Os
Osmis
190.233
77 2
8
18
32
15
2
Ir
Iridis
192.2173
78 2
8
18
32
17
1
Pt
Platina
195.0849
79 2
8
18
32
18
1
Au
Auksas
196.9666
80 2
8
18
32
18
2
Hg
Gyvsidabris
200.5923
81 2
8
18
32
18
3
Tl
Talis
204.38
82 2
8
18
32
18
4
Pb
Švinas
207.21
83 2
8
18
32
18
5
Bi
Bismutas
208.9804
84 2
8
18
32
18
6
Po
Polonis
(209)
85 2
8
18
32
18
7
At
Astatinas
(210)
86 2
8
18
32
18
8
Rn
Radonas
(222)
VII
87 2
8
18
32
18
8
1
Fr
Francis
(223)
88 2
8
18
32
18
8
2
Ra
Radis
(226)
89–103
104 2
8
18
32
32
10
2
Rf
Ruterfordis
[267]
105 2
8
18
32
32
11
2
Db
Dubnis
[268]
106 2
8
18
32
32
12
2
Sg
Syborgis
[269]
107 2
8
18
32
32
13
2
Bh
Boris
[270]
108 2
8
18
32
32
14
2
Hs
Hasis
[269]
109 2
8
18
32
32
15
2
Mt
Meitneris
[278]
110 2
8
18
32
32
16
2
Ds
Darmštatis
[281]
111 2
8
18
32
32
17
2
Rg
Rentgenis
[281]
112 2
8
18
32
32
18
2
Cn
Kopernikis
[285]
113 2
8
18
32
32
18
3
Uut
Ununtrijus
[286]
114 2
8
18
32
32
18
4
Fl
Flerovis
[289]
115 2
8
18
32
32
18
5
Uup
Ununpentijus
[289]
116 2
8
18
32
32
18
6
Lv
Livermoris
[293]
117 2
8
18
32
32
18
7
Uus
[294]
118 2
8
18
32
32
18
8
Uuo
[294]


57 2
8
18
18
9
2
La
Lantanas
138.9055
58 2
8
18
19
9
2
Ce
Ceris
140.1161
59 2
8
18
21
8
2
Pr
Prazeodimis
140.9077
60 2
8
18
22
8
2
Nd
Neodimis
144.2423
61 2
8
18
23
8
2
Pm
Prometis
[145]
62 2
8
18
24
8
2
Sm
Samaris
150.362
63 2
8
18
25
8
2
Eu
Europis
151.9641
64 2
8
18
25
9
2
Gd
Gadolinis
157.253
65 2
8
18
27
8
2
Tb
Terbis
158.9254
66 2
8
18
28
8
2
Dy
Disprozis
162.5001
67 2
8
18
29
8
2
Ho
Holmis
164.9303
68 2
8
18
30
8
2
Er
Erbis
167.2593
69 2
8
18
31
8
2
Tm
Tulis
168.9342
70 2
8
18
32
8
2
Yb
Iterbis
173.0451
71 2
8
18
32
9
2
Lu
Liutecis
174.9668
89 2
8
18
32
18
9
2
Ac
Aktinis
(227)
90 2
8
18
32
18
10
2
Th
Toris
232.0377
91 2
8
18
32
20
9
2
Pa
Protaktinis
231.0359
92 2
8
18
32
21
9
2
U
Uranas
238.0289
93 2
8
18
32
22
9
2
Np
Neptūnas
(237)
94 2
8
18
32
24
8
2
Pu
Plutonis
(244)
95 2
8
18
32
25
8
2
Am
Americis
(243)
96 2
8
18
32
25
9
2
Cm
Kiuris
(247)
97 2
8
18
32
27
8
2
Bk
Berklis
(247)
98 2
8
18
32
28
8
2
Cf
Kalifornis
(251)
99 2
8
18
32
29
8
2
Es
Einšteinis
(252)
100 2
8
18
32
30
8
2
Fm
Fermis
(257)
101 2
8
18
32
31
8
2
Md
Mendelevis
(258)
102 2
8
18
32
32
8
2
No
Nobelis
[259]
103 2
8
18
32
32
8
3
Lr
Lorensis
[266]





























    
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