Periodic table

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HHydrogen
HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
LaCePrNdPmSmEuGdTbDyHoErTmYb
AcThPaUNpPuAmCmBkCfEsFmMdNo