menurut data, ada 90 unsur alami yg trdapat dlm tabel periodik. apa-apa saja ya ?

hidrogen, helium, litium, berilium, boron, karbon, nitrogen, oksigen, fluor, neon, natrium, magnesium, aluminium, silikon, fosforus, belerang, klorin, argon, kalium, kalsium, skandi, titanium, vanadium, krom, mangan, besi, kobalt, nikel, tembaga, seng, galium, germanium, arsenik, selenium, bromium, kripton, rubidium, stronsium, itrium, zirkonium, niobium, molibdenum, rutenium, rodium, paladium, perak, kadmium, indium, timah, antimon, telurium, iodin, ksenon, sesium, barium, lantanum, hafnium, tantalum, wolfram, renium, osmium, iridium, platina, emas, raksa, talium, timbal, bismut, polonium, astatin, radon, fransium, radium, aktinium, serium, praseodimium, neodimium, samarium, eropium, gadolinium, terbium, disprosium, holmium, erbium, tulium, iterbium, lutesium, torium, protaktinium, uranium