Nima uchun temir, kobalt va nikel kabi metallar Tomsonning salbiy ta'sirini ko'rsatadi? Mis va sink kabi boshqa metallar Tomsonning ijobiy ta'sirini ko'rsatadi? Buni eksperimental kuzatishdan tashqari tushuntiradigan biron bir oqilona g'oya yoki sezgi bormi?
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