Template:Periodic table (18 columns, detailed cells)

Periodic table (large cells, 18-column layout)

Group →	1	2		3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
	Alkali metal	Alkaline earth metal												Boron group	Carbon group	Pnictogen	Chalcogen	Halogen	Noble gas
CAS:	IA	IIA		IIIB	IVB	VB	VIB	VIIB	VIIIB			IB	IIB	IIIA	IVA	VA	VIA	VIIA	VIIIA
old IUPAC:	IA	IIA		IIIA	IVA	VA	VIA	VIIA	VIII			IB	IIB	IIIB	IVB	VB	VIB	VIIB	0
Period ↓ 1 Period ↓	Hydrogen 1 H   1.0080 1.0080±0.0002	→element name atomic number chemical symbol standard atomic weight																	Helium 2 He  4.0026 4.002602±0.000002
2	Lithium 3 Li  6.94 6.94±0.06	Beryllium 4 Be  9.0122 9.0121831±0.0000005												Boron 5 B   10.81 10.81±0.02	Carbon 6 C   12.011 12.011±0.002	Nitrogen 7 N   14.007 14.007±0.001	Oxygen 8 O   15.999 15.999±0.001	Fluorine 9 F   18.998 18.998403162±0.000000005	Neon 10 Ne  20.180 20.1797±0.0006
3	Sodium 11 Na  22.990 22.98976928±0.00000002	Magnesium 12 Mg  24.305 24.305±0.002												Aluminium 13 Al  26.982 26.9815384±0.0000003	Silicon 14 Si  28.085 28.085±0.001	Phosphorus 15 P   30.974 30.973761998±0.000000005	Sulfur 16 S   32.06 32.06±0.02	Chlorine 17 Cl  35.45 35.45±0.01	Argon 18 Ar  39.95 [39.792, 39.963]
4	Potassium 19 K   39.098 39.0983±0.0001	Calcium 20 Ca  40.078 40.078±0.004		Scandium 21 Sc  44.956 44.955907±0.000004	Titanium 22 Ti  47.867 47.867±0.001	Vanadium 23 V   50.942 50.9415±0.0001	Chromium 24 Cr  51.996 51.9961±0.0006	Manganese 25 Mn  54.938 54.938043±0.000002	Iron 26 Fe  55.845 55.845±0.002	Cobalt 27 Co  58.933 58.933194±0.000003	Nickel 28 Ni  58.693 58.6934±0.0004	Copper 29 Cu  63.546 63.546±0.003	Zinc 30 Zn  65.38 65.38±0.02	Gallium 31 Ga  69.723 69.723±0.001	Germanium 32 Ge  72.630 72.630±0.008	Arsenic 33 As  74.922 74.921595±0.000006	Selenium 34 Se  78.971 78.971±0.008	Bromine 35 Br  79.904 79.904±0.003	Krypton 36 Kr  83.798 83.798±0.002
5	Rubidium 37 Rb  85.468 85.4678±0.0003	Strontium 38 Sr  87.62 87.62±0.01		Yttrium 39 Y   88.906 88.905838±0.000002	Zirconium 40 Zr  91.224 91.224±0.002	Niobium 41 Nb  92.906 92.90637±0.00001	Molybdenum 42 Mo  95.95 95.95±0.01	Technetium 43 Tc  [97]	Ruthenium 44 Ru  101.07 101.07±0.02	Rhodium 45 Rh  102.91 102.90549±0.00002	Palladium 46 Pd  106.42 106.42±0.01	Silver 47 Ag  107.87 107.8682±0.0002	Cadmium 48 Cd  112.41 112.414±0.004	Indium 49 In  114.82 114.818±0.001	Tin 50 Sn  118.71 118.710±0.007	Antimony 51 Sb  121.76 121.760±0.001	Tellurium 52 Te  127.60 127.60±0.03	Iodine 53 I   126.90 126.90447±0.00003	Xenon 54 Xe  131.29 131.293±0.006
6	Caesium 55 Cs  132.91 132.90545196±0.00000006	Barium 56 Ba  137.33 137.327±0.007	57–70	Lutetium 71 Lu  174.97 174.9668±0.0001	Hafnium 72 Hf  178.49 178.486±0.006	Tantalum 73 Ta  180.95 180.94788±0.00002	Tungsten 74 W  183.84 183.84±0.01	Rhenium 75 Re  186.21 186.207±0.001	Osmium 76 Os  190.23 190.23±0.03	Iridium 77 Ir  192.22 192.217±0.002	Platinum 78 Pt  195.08 195.084±0.009	Gold 79 Au  196.97 196.966570±0.000004	Mercury 80 Hg  200.59 200.592±0.003	Thallium 81 Tl  204.38 204.38±0.01	Lead 82 Pb  207.2 [206.14, 207.94]	Bismuth 83 Bi  208.98 208.98040±0.00001	Polonium 84 Po  [209]	Astatine 85 At  [210]	Radon 86 Rn  [222]
7	Francium 87 Fr  [223]	Radium 88 Ra  [226]	89–102	Lawrencium 103 Lr  [266]	Rutherfordium 104 Rf  [267]	Dubnium 105 Db  [268]	Seaborgium 106 Sg  [269]	Bohrium 107 Bh  [270]	Hassium 108 Hs  [269]	Meitnerium 109 Mt  [278]	Darmstadtium 110 Ds  [281]	Roentgenium 111 Rg  [282]	Copernicium 112 Cn  [285]	Nihonium 113 Nh  [286]	Flerovium 114 Fl  [289]	Moscovium 115 Mc  [290]	Livermorium 116 Lv  [293]	Tennessine 117 Ts  [294]	Oganesson 118 Og  [294]
				Lanthanum 57 La  138.91 138.90547±0.00007	Cerium 58 Ce  140.12 140.116±0.001	Praseodymium 59 Pr  140.91 140.90766±0.00001	Neodymium 60 Nd  144.24 144.242±0.003	Promethium 61 Pm  [145]	Samarium 62 Sm  150.36 150.36±0.02	Europium 63 Eu  151.96 151.964±0.001	Gadolinium 64 Gd  157.25 157.25±0.03	Terbium 65 Tb  158.93 158.925354±0.000007	Dysprosium 66 Dy  162.50 162.500±0.001	Holmium 67 Ho  164.93 164.930329±0.000005	Erbium 68 Er  167.26 167.259±0.003	Thulium 69 Tm  168.93 168.934219±0.000005	Ytterbium 70 Yb  173.05 173.045±0.010
				Actinium 89 Ac  [227]	Thorium 90 Th  232.04 232.0377±0.0004	Protactinium 91 Pa  231.04 231.03588±0.00001	Uranium 92 U   238.03 238.02891±0.00003	Neptunium 93 Np  [237]	Plutonium 94 Pu  [244]	Americium 95 Am  [243]	Curium 96 Cm  [247]	Berkelium 97 Bk  [247]	Californium 98 Cf  [251]	Einsteinium 99 Es  [252]	Fermium 100 Fm  [257]	Mendelevium 101 Md  [258]	Nobelium 102 No  [259]

Primordial  From decay  Synthetic Border shows natural occurrence of the element

Standard atomic weight A_{r, std}(E)

• F: 18.998403162±0.000000005 — Standard atomic weight
• C: [12.0096, 12.0116] — Standard atomic weight is an interval
• F: 18.998, C: 12.011 — Abridged value
• Po: [209] — mass number of the most stable isotope

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