Something from my dream said over and over
Actinium - AcAluminum - AlAmericium - AmAntimony - SbArgon - ArArsenic - AsAstatine - AtBarium - BaBerkelium - BkBeryllium - BeBismuth - BiBoron - BBromine - BrCadmium - CdCaesium - CsCalcium - CaCalifornium - CfCarbon - CCerium - CeChlorine - ClChromium - CrCobalt - CoCopper - CuCurium - CmDysprosium - DyEinsteinium - EsErbium - ErEuropium - EuFermium - FmFluorine - FFrancium - FrGadolinium - GdGallium - GaGermanium - GeGold - AuHafnium - HfHelium - HeHolmium - HoHydrogen - HIndium - InIodine - IIridium - IrIron - FeKrypton - KrLanthanum - LaLawrencium - LrLead - PbLithium - LiLutetium - LuMagnesium - MgManganese - MnMeitnerium - MtMendelevium - MdMercury - HgMolybdenum - MoNeodymium - NdNeon - NeNeptunium - NpNickel - NiNiobium - NbNitrogen - NNobelium - NoOsmium - OsOxygen - OPalladium - PdPhosphorus - PPlatinum - PtPlutonium - PuPolonium - PoPotassium - KPraseodymium - PrPromethium - PmProtactinium - PaRadium - RaRadon - RnRhenium - ReRhodium - RhRubidium - RbRuthenium - RuSamarium - SmScandium - ScSelenium - SeSilicon - SiSilver - AgSodium - NaStrontium - SrSulphur - STantalum - TaTechnetium - TcTellurium - TeTerbium - TbThallium - TlThorium - ThThulium - TmTin - SnTitanium - TiTungsten - WUnnilhexium - UnhUnniloctium - UnoUnnilpentium - UnpUnnilquadium - UnqUnnilseptium - UnsUranium - UVanadium - VXenon - XeYtterbium - YbYttrium - YZinc - ZnZirconium - Zr
See related links.In the periodic table there are alot of element such as:Actinium - AcAluminum - AlAmericium - AmAntimony - SbArgon - ArArsenic - AsAstatine - AtBarium - BaBerkelium - BkBeryllium - BeBismuth - BiBoron - BBromine - BrCadmium - CdCaesium - CsCalcium - CaThese can be danderousCalifornium - CfCarbon - CCerium - CeChlorine - ClChromium - CrCobalt - CoCopper - CuCurium - CmDysprosium - DyEinsteinium - EsErbium - ErEuropium - EuFermium - FmFluorine - FFrancium - FrGadolinium - GdGallium - GaGermanium - GeGold - AuHafnium - HfHelium - HeHolmium - HoHydrogen - HIndium - InIodine - IIridium - IrIron - FeKrypton - KrLanthanum - LaLawrencium - LrLead - PbLithium - LiLutetium - LuMagnesium - MgManganese - MnMeitnerium - MtMendelevium - MdMercury - HgMolybdenum - MoNeodymium - NdNeon - NeNeptunium - NpNickel - NiNiobium - NbNitrogen - NNobelium - NoOsmium - OsOxygen - OPalladium - PdPhosphorus - PPlatinum - PtPlutonium - PuPolonium - PoPotassium - KPraseodymium - PrPromethium - PmProtactinium - PaRadium - RaRadon - RnRhenium - ReRhodium - RhRubidium - RbRuthenium - RuSamarium - SmScandium - ScSelenium - SeSilicon - SiSilver - AgSodium - NaStrontium - SrSulphur - STantalum - TaTechnetium - TcTellurium - TeTerbium - TbThallium - TlThorium - ThThulium - TmTin - SnTitanium - TiTungsten - WUnnilhexium - UnhUnniloctium - UnoUnnilpentium - UnpUnnilquadium - UnqUnnilseptium - UnsUranium - UVanadium - VXenon - XeYtterbium - YbYttrium - YZinc - ZnZirconium - Zr
Actinium - AcAluminum - AlAmericium - AmAntimony - SbArgon - ArArsenic - AsAstatine - AtBarium - BaBerkelium - BkBeryllium - BeBismuth - BiBoron - BBromine - BrCadmium - CdCaesium - CsCalcium - CaCalifornium - CfCarbon - CCerium - CeChlorine - ClChromium - CrCobalt - CoCopper - CuCurium - CmDysprosium - DyEinsteinium - EsErbium - ErEuropium - EuFermium - FmFluorine - FFrancium - FrGadolinium - GdGallium - GaGermanium - GeGold - AuHafnium - HfHelium - HeHolmium - HoHydrogen - HIndium - InIodine - IIridium - IrIron - FeKrypton - KrLanthanum - LaLawrencium - LrLead - PbLithium - LiLutetium - LuMagnesium - MgManganese - MnMeitnerium - MtMendelevium - MdMercury - HgMolybdenum - MoNeodymium - NdNeon - NeNeptunium - NpNickel - NiNiobium - NbNitrogen - NNobelium - NoOsmium - OsOxygen - OPalladium - PdPhosphorus - PPlatinum - PtPlutonium - PuPolonium - PoPotassium - KPraseodymium - PrPromethium - PmProtactinium - PaRadium - RaRadon - RnRhenium - ReRhodium - RhRubidium - RbRuthenium - RuSamarium - SmScandium - ScSelenium - SeSilicon - SiSilver - AgSodium - NaStrontium - SrSulphur - STantalum - TaTechnetium - TcTellurium - TeTerbium - TbThallium - TlThorium - ThThulium - TmTin - SnTitanium - TiTungsten - WUnnilhexium - UnhUnniloctium - UnoUnnilpentium - UnpUnnilquadium - UnqUnnilseptium - UnsUranium - UVanadium - VXenon - XeYtterbium - YbYttrium - YZinc - ZnZirconium - Zr
You can't -- at least you can't be sure. What determines the identity of an element is the number of protons in the nucleus. The mass number however is the sum of the number of protons and the number of neutrons. And because the number of neutrons in a single element can vary by as much as 10 or more from atom to atom, more than one element can have the exact same mass number. As a simple example of this, take a mass number of three. That could be hydrogen with two neutrons, helium with one neutron, or lithium with no neutrons. All three are possible.