Compounds of these elements are where the Jahn-Teller effect is most commonly encountered. These elements are in the middle of sandwich compounds. Crystal field theory explains the intense colors of coordination complexes with these elements as the central atom. These elements or compounds of them are used as catalysts in the contact process, (*) Haber process, and in catalytic converters. These are the only elements with partially-filled d shells. The oxidation states of these elements are often differentiated with the suffixes "-ous" and "-ic." For 10 points, name these elements in the middle of the periodic table t
Compounds of these elements are where the Jahn-Teller effect is most commonly encountered. These elements are in the middle of sandwich compounds. Crystal field theory explains the intense colors of coordination complexes with these elements as the central atom. These elements or compounds of them are used as catalysts in the contact process, (*) Haber process, and in catalytic converters. These are the only elements with partially-filled d shells. The oxidation states of these elements are often differentiated with the suffixes "-ous" and "-ic." For 10 points, name these elements in the middle of the periodic table that include nickel and iron.
Compounds of these elements are where the Jahn-Teller effect is most commonly encountered.