Group: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
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Period | | | |
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1 | 1 H H - Hydrogen Atomic No.1 Atomic Weight:1.008 | |
| | | | | | | | | | | | | | | 2 He He - Helium Atomic No.2 Atomic Weight:4.003 |
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2 |
3 Li Li - Lithium Atomic No.3 Atomic Weight:6 | 4 Be Be - Berylium Atomic No.4 Atomic Weight:9.012 | | | | | | | | | |
| 5 B B - Boron Atomic No.5 Atomic Weight:10.81 | 6 C C - Carbon Atomic No.6 Atomic Weight:12.011 | 7 N N - Nitrogen Atomic No.7 Atomic Weight:14.007
| 8 O O - Oxygen Atomic No.8 Atomic Weight:15.999 | 9 F F - Fluorine Atomic No.9 Atomic Weight:18.998 | 10 Ne Ne - Neon Atomic No.10 Atomic Weight:20.180
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3 | 11 Na Na - Sodium Atomic No.11 Atomic Weight:22.990 | 12 Mg Mg - Magnesium Atomic No.12 Atomic Weight:24.305 | | | | | |
| | | | | 13 Al Al - Aluminium Atomic No.13 Atomic Weight:26.982 | 14 Si Si - Silicon Atomic No.14 Atomic Weight:28.085 | 15 P
P - Phosphorous Atomic No.15 Atomic Weight:30.974 | 16 S S - Sulphur Atomic No.16 Atomic Weight:32.06 | 17 Cl Cl - Chlorine Atomic No.17 Atomic Weight:35.45 |
18 Ar Ar - Argon Atomic No.18 Atomic Weight:39.95 |
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4 | 19 K K - Potassium Atomic No.19 Atomic Weight:39.098 | 20 Ca Ca - Calcium Atomic No.20 Atomic Weight:40.078
| 21 Sc Sc - Scandium Atomic No.21 Atomic Weight:44.956 | 22 Ti Ti - Titanium Atomic No.22 Atomic Weight:47.867 | 23 V V - Vanadium Atomic No.23 Atomic Weight:50.942
| 24 Cr Cr - Chromium Atomic No.24 Atomic Weight:51.996 | 25 Mn Mn - Manganese Atomic No.25 Atomic Weight:54.938 | 26 Fe Fe - Iron Atomic No.26 Atomic Weight:55.845
| 27 Co Co - Cobalt Atomic No.27 Atomic Weight:58.933 | 28 Ni Ni - Nickel Atomic No.28 Atomic Weight:58.693 | 29 Cu Cu - Copper Atomic No.29 Atomic Weight:63.546
| 30 Zn Zn - Zinc Atomic No.30 Atomic Weight:65.38 | 31 Ga Ga - Gallium Atomic No.31 Atomic Weight:69.723 | 32 Ge Ge - Germanium Atomic No.32 Atomic Weight:72.630
| 33 As As - Arsenic Atomic No.33 Atomic Weight:74.922 | 34 Se Se - Selenium Atomic No.34 Atomic Weight:78.971 | 35 Br Br - Bromine Atomic No.35 Atomic Weight:79.904
| 36 Kr Kr - Krypton Atomic No.36 Atomic Weight:83.798 |
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5 | 37 Rb Rb - Rubidium Atomic No.37 Atomic Weight:85.468 | 38 Sr Sr - Strontium Atomic No.38 Atomic Weight:87.62
| 39 Y Y - Yttrium Atomic No.39 Atomic Weight:88.906 | 40 Zr Zr - Zirconium Atomic No.40 Atomic Weight:91.224 | 41 Nb Nb - Niobium Atomic No.41 Atomic Weight:92.906
| 42 Mo Mo - Molybdenum Atomic No.42 Atomic Weight:95.95 | 43 Tc Tc - Technetium Atomic No.43 Atomic Weight:(98) | 44 Ru Ru - Ruthenium Atomic No.44 Atomic Weight:101.07
| 45 Rh Rh - Rhodium Atomic No.45 Atomic Weight:102.96 | 46 Pd Pd - Paladium Atomic No.46 Atomic Weight:106.42 | 47 Ag Ag - Silver Atomic No.47 Atomic Weight:107.868
| 48 Cd Cd - Cadmium Atomic No.48 Atomic Weight:112.414 | 49 In In - Indium Atomic No.49 Atomic Weight:114.818 | 50 Sn Sn - Tin Atomic No.50 Atomic Weight:118.710
| 51 Sb Sb - Antimony Atomic No.51 Atomic Weight:121.760 | 52 Te Te - Tellurium Atomic No.52 Atomic Weight:127.60 | 53 I I - Iodine Atomic No.53 Atomic Weight:126.904
| 54 Xe Xe - Xenon Atomic No.54 Atomic Weight:131.293 |
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6 | 55 Cs Cs - Cesium Atomic No.55 Atomic Weight:132.905 | 56 Ba Ba - Barium Atomic No.56 Atomic Weight:137.327
| Lanthanoids57 La La - Lanthanum Atomic No.57 Atomic Weight:138.905
| 58 Ce Ce - Cerium Atomic No.58 Atomic Weight:140.116 | 59 Pr Pr - Praseodymium Atomic No.59 Atomic Weight:140.908 | 60 Nd Nd - Neodymium Atomic No.60 Atomic Weight:144.242
| 61 Pm Pm - Prometheum Atomic No.61 Atomic Weight:(145) | 62 Sm Sm - Samarium Atomic No.62 Atomic Weight:150.36 | 63 Eu Eu - Europium Atomic No.63 Atomic Weight:151.964
| 64 Gd Gd - Gadolinium Atomic No.64 Atomic Weight:157.25 | 65 Tb Tb - Terbium Atomic No.65 Atomic Weight:158.925 | 66 Dy Dy - Dysprosium Atomic No.66 Atomic Weight:162.500
| 67 Ho Ho - Holmium Atomic No.67 Atomic Weight:164.930 | 68 Er Er - Erbium Atomic No.68 Atomic Weight:167.259 | 69 Tm Tm - Thulium Atomic No.69 Atomic Weight:168.934
| 70 Yb Yb - Ytterbium Atomic No.70 Atomic Weight:173.045 |
| 71 Lu Lu - Lutetium Atomic No.71 Atomic Weight:174.967 | 72 Hf Hf - Hafnium Atomic No.72 Atomic Weight:178.486
| 73 Ta Ta - Tantalum Atomic No.73 Atomic Weight:180.948 | 74 W W - Tungsten Atomic No.74 Atomic Weight:183.84 | 75 Re Re - Rhenium Atomic No.75 Atomic Weight:186.207
| 76 Os Os - Osmium Atomic No.76 Atomic Weight:190.23 | 77 Ir Ir - Iridium Atomic No.77 Atomic Weight:192.217 | 78 Pt Pt - Platinum Atomic No.78 Atomic Weight:195.084
| 79 Au Au - Gold Atomic No.79 Atomic Weight:196.967 | 80 Hg Hg - Mercury Atomic No.80 Atomic Weight:200.592 | 81 Tl Tl - Thallium Atomic No.81 Atomic Weight:204.38
| 82 Pb Pb - Lead Atomic No.82 Atomic Weight:207.2 | 83 Bi Bi - Bismuth Atomic No.83 Atomic Weight:208.980 | 84 Po Po - Polonium Atomic No.84 Atomic Weight:[209]
| 85 At At - Astatine Atomic No.85 Atomic Weight:[210] | 86 Rn Rn - Radon Atomic No.86 Atomic Weight:[222] |
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7 | 87 Fr Fr - Francium Atomic No.87 Atomic Weight:[223]
| 88 Ra Ra - Radium Atomic No.88 Atomic Weight:[226] | Actinoids
89 Ac Ac - Actinium Atomic No.89 Atomic Weight:[227] | 90 Th Th - Thorium Atomic No.90 Atomic Weight:232.038 | 91 Pa Pa - Protactinium Atomic No.91 Atomic Weight:231.036
| 92 U U - Uranium Atomic No.92 Atomic Weight:238.029 | 93 Np Np - Neptunium Atomic No.93 Atomic Weight:[237] | 94 Pu Pu - Plutonium Atomic No.94 Atomic Weight:[244]
| 95 Am Am - Americium Atomic No.95 Atomic Weight:[243] | 96 Cm Cm - Curium Atomic No.96 Atomic Weight:[247] | 97 Bk Bk - Berkelium Atomic No.97 Atomic Weight:[247]
| 98 Cf Cf - Californium Atomic No.98 Atomic Weight:[251] | 99 Es Es - Einsteinium Atomic No.99 Atomic Weight:[252] | 100 Fm Fm - Fermium Atomic No.100 Atomic Weight:[257]
| 101 Md Md - Mendelevium Atomic No.101 Atomic Weight:[258] | 102 No No - Nobelium Atomic No.102 Atomic Weight:[259] |
| 103 Lr Lr - Lawrencium Atomic No.103 Atomic Weight:[262]
| 104 Rf Rf - Rutherfordium Atomic No.104 Atomic Weight:[267] | 105 Db Db - Dubnium Atomic No.105 Atomic Weight:[268] | 106 Sg Sg - Seaborgium Atomic No.106 Atomic Weight:[269]
| 107 Bh Bh - Bohrium Atomic No.107 Atomic Weight:[270] | 108 Hs Hs - Hassium Atomic No.108 Atomic Weight:[269] | 109 Mt Mt - Meltnerium Atomic No.109 Atomic Weight:[278]
| 110 Ds Ds - Darmstadtium Atomic No.110 Atomic Weight:[281] | 111 Rg Rg - Roentgenium Atomic No.111 Atomic Weight:[280] | 112 Cn Cn - Copernicium Atomic No.112 Atomic Weight:[285]
| 113 Nh Nh - Nihonium Atomic No.113 Atomic Weight:[286] | 114 Uuq Fi - Flerovium Atomic No.114 Atomic Weight:[289] | 115 Mc Mc - Moscovium Atomic No.115 Atomic Weight:[289]
| 116 Lv Lv - Livermorium Atomic No.116 Atomic Weight:[293] | 117 Ts Ts - Tennessine Atomic No.117 Atomic Weight:[294] | 118 Og Og - Oganesson Atomic No.118 Atomic Weight:[294]
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