ocr: 1a H 2a 3a 4a 5a 6a 7a Hel Li Be BCNOFNe NaMg 3b 4b 5b 6b 7b 8b 1b 2b Al Si - PS CIAr K ca/Sc/mi/vicr/Mal FeCoNi CuZn GaGe As Se Br Kr Rb Sr Y ZrNbMo Tel Ru Rh Pd AgCd In Sn Sbl Tel I Xe Cs Ba HfTal WRe Os Ir Pt Au Hg Til Pb Bi Po At Rn Fr Ra Unq/Unp/Unh/Uns UnoUne LaCePr NdPmSm Eu/GdTb/DyHo Er TmYbLu AcTh - Pal U Np PuAmCm Bk Cf Es Fm Md NoLr