Periodic Table of the Elements
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| Period | Group | |||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |
| 1 |
1 H Hydrogen 1,0079 u |
2 He Helium 4,0026 u |
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| 2 |
3 Li Lithium 6,941 u |
4 Be Beryllium 9,0122 u |
5 B Boron 10,810 u |
6 C Carbon 12,011 u |
7 N Nitrogen 14,007 u |
8 O Oxygen 15,999 u |
9 F Fluorine 18,998 u |
10 Ne Neon 20,179 u |
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| 3 |
11 Na Sodium 22,990 u |
12 Mg Magnesium 24,305 u |
13 Al Aluminum 26,982 u |
14 Si Silicon 28,086 u |
15 P Phosphorus 30,974 u |
16 S Sulfur 32,060 u |
17 Cl Chlorine 35,453 u |
18 Ar Argon 39,948 u |
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| 4 |
19 K Potassium 39,098 u |
20 Ca Calcium 40,080 u |
21 Sc Scandium 44,956 u |
22 Ti Titanium 47,900 u |
23 V Vanadium 50,942 u |
24 Cr Chromium 51,996 u |
25 Mn Manganese 54,938 u |
26 Fe Iron 55,847 u |
27 Co Cobalt 58,933 u |
28 Ni Nickel 58,710 u |
29 Cu Copper 63,546 u |
30 Zn Zinc 65,380 u |
31 Ga Gallium 69,735 u |
32 Ge Germanium 72,590 u |
33 As Arsenic 74,922 u |
34 Se Selenium 78,966 u |
35 Br Bromine 79,904 u |
36 Kr Krypton 83,800 u |
| 5 |
37 Rb Rubidium 85,468 u |
38 Sr Strontium 87,620 u |
39 Y Yttrium 88,906 u |
40 Zr Zirconium 91,220 u |
41 Nb Niobium 92,906 u |
42 Mo Molybdenum 95,940 u |
43 Tc Technetium 98,910 u |
44 Ru Ruthenium 101,07 u |
45 Rh Rhodium 102,91 u |
46 Pd Palladium 106,40 u |
47 Ag Silver 107,87 u |
48 Cd Cadmium 112,41 u |
49 In Indium 114,82 u |
50 Sn Tin 118,69 u |
51 Sb Antimony 121,75 u |
52 Te Tellurium 127,60 u |
53 I Iodine 126,90 u |
54 Xe Xenon 131,30 u |
| 6 |
55 Cs Cesium 132,91 u |
56 Ba Barium 137,33 u |
57 La Lanthanum 138,91 u |
72 Hf Hafnium 178,49 u |
73 Ta Tantalum 180,95 u |
74 W Tungsten 183,85 u |
75 Re Rhenium 186,21 u |
76 Os Osmium 190,20 u |
77 Ir Iridium 192,22 u |
78 Pt Platinum 195,09 u |
79 Au Gold 196,97 u |
80 Hg Mercury 200,59 u |
81 Tl Thallium 204,37 u |
82 Pb Lead 207,19 u |
83 Bi Bismuth 208,98 u |
84 Po Polonium 208,98 u |
85 At Astatine (210,0 u) |
86 Rn Radon (222,0 u) |
| 7 |
87 Fr Francium (223,0 u) |
88 Ra Radium 226,03 u |
89 Ac Actinium (227,0 u) |
104 Rf Rutherfordium (261,0 u) |
105 Db Dubnium (262,1 u) |
106 Sg Seaborgium (263,0 u) |
107 Bh Bohrium (262,0 u) |
108 Hs Hassium (265,0 u) |
109 Mt Meitnerium (266,0 u) |
110 Ds Darmstadtium (269,0 u) |
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| 6 | Lanthanides |
58 Ce Cerium 140,12 u |
59 Pr Praseodymium 140,91 u |
60 Nd Neodymium 144,24 u |
61 Pm Promethium 146,90 u |
62 Sm Samarium 150,35 u |
63 Eu Europium 151,96 u |
64 Gd Gadolinium 157,25 u |
65 Tb Terbium 158,93 u |
66 Dy Dysprosium 162,50 u |
67 Ho Holmium 164,93 u |
68 Er Erbium 167,26 u |
69 Tm Thulium 168,93 u |
70 Yb Ytterbium 173,04 u |
71 Lu Lutetium 174,97 u |
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| 7 | Actinides |
90 Th Thorium 232,04 u |
91 Pa Protactinium 231,04 u |
92 U Uranium 238,03 u |
93 Np Neptunium 237,05 u |
94 Pu Plutonium (244,1 u) |
95 Am Americium (243,1 u) |
96 Cm Curium (247,1 u) |
97 Bk Berkelium (247,1 u) |
98 Cf Californium (251,1 u) |
99 Es Einsteinium (254,1 u) |
100 Fm Fermium (257,1 u) |
101 Md Mendelevium (258,0 u) |
102 No Nobelium (259,0 u) |
103 Lr Lawrencium (260,0 u) |
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