The titanium and its compounds are widely used both in the metallurgical area and in the production of cosmetics and pharmaceuticals. In Brazil, th...
The titanium and its compounds are widely used both in the metallurgical area and in the production of cosmetics and pharmaceuticals. In Brazil, the minerals are extracted in the form of oxides, rutile (TiO2) and ilmenite (FeTiO3). Titanium presents the same oxidation state in these two minerals. The oxidation number of titanium and the electronic configuration of the valence layer of iron in the oxidation state in which it is found in ilmenite are, respectively:
a) +2 and 3d6 4s2. b) +2 and 3d4 4s2. c) +3 and 3d5. d) +4 and 3d6. e) +4 and 3d4.
A alternativa correta é a letra d) +4 e 3d6. O titânio apresenta o estado de oxidação +4 tanto no rutilo quanto na ilmenita. Na ilmenita, o ferro apresenta estado de oxidação +2, com configuração eletrônica 3d6.
0
0
Faça como milhares de estudantes: teste grátis o Passei Direto
Compartilhar