1 B: bakır, gümüş, altın, roentgenium, 2 B: çinko, kadmiyum, cıva, kopernikyum, 3 B: skandiyum, itriyum, lantan, aktinyum, 4 B: titan, zirkonyum, hafniyum, rutherfordium, 5 B: vanadyum, niobyum, tantal, dubnium, 6 B: krom, molibden, volfram, seaborgium, 7 B: mangan, teknesyum, renyum, bohrium, 8 B: demir, kobalt, nikel, platin,

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