In Mendeleev's 1871 periodic table, copper, silver, and gold are detailed twice, after below group VIII (With all the iron triad and platinum team metals), and once under team IB. Team IB was However parenthesised to notice that it was tentative. Mendeleev's primary criterion for team assignment was the most https://mariocawpj.dreamyblogs.com/36255996/top-latest-five-bigbos777-link-urban-news