PERIODICA — The Encyclopedia of the Periodic Table

1HHydrogen1.008 2HeHelium4.003 3LiLithium6.94 4BeBeryllium9.012 5BBoron10.81 6CCarbon12.011 7NNitrogen14.007 8OOxygen15.999 9FFluorine18.998 10NeNeon20.18 11NaSodium22.99 12MgMagnesium24.305 13AlAluminium26.982 14SiSilicon28.085 15PPhosphorus30.974 16SSulfur32.06 17ClChlorine35.45 18ArArgon39.948 19KPotassium39.098 20CaCalcium40.078 21ScScandium44.956 22TiTitanium47.867 23VVanadium50.942 24CrChromium51.996 25MnManganese54.938 26FeIron55.845 27CoCobalt58.933 28NiNickel58.693 29CuCopper63.546 30ZnZinc65.382 31GaGallium69.723 32GeGermanium72.631 33AsArsenic74.922 34SeSelenium78.972 35BrBromine79.904 36KrKrypton83.798 37RbRubidium85.468 38SrStrontium87.621 39YYttrium88.906 40ZrZirconium91.224 41NbNiobium92.906 42MoMolybdenum95.951 43TcTechnetium98 44RuRuthenium101.072 45RhRhodium102.906 46PdPalladium106.421 47AgSilver107.868 48CdCadmium112.414 49InIndium114.818 50SnTin118.711 51SbAntimony121.76 52TeTellurium127.603 53IIodine126.904 54XeXenon131.294 55CsCaesium132.905 56BaBarium137.328 57–71 72HfHafnium178.492 73TaTantalum180.948 74WTungsten183.841 75ReRhenium186.207 76OsOsmium190.233 77IrIridium192.217 78PtPlatinum195.085 79AuGold196.967 80HgMercury200.592 81TlThallium204.38 82PbLead207.21 83BiBismuth208.98 84PoPolonium209 85AtAstatine210 86RnRadon222 87FrFrancium223 88RaRadium226 89–103 104RfRutherfordium267 105DbDubnium268 106SgSeaborgium269 107BhBohrium270 108HsHassium269 109MtMeitnerium278 110DsDarmstadtium281 111RgRoentgenium282 112CnCopernicium285 113NhNihonium286 114FlFlerovium289 115McMoscovium289 116LvLivermorium293 117TsTennessine294 118OgOganesson294