Type II binary compounds

We will call such ions Type 11 cafions and fheir compounds Type II binary compounds. 

Type II binary compound containing Nb and 0 ions. Niobium is a transition metai and requires a Roman numerai. 

Other metal atoms can form two or more cations. For example, Cr can form Cr and Cr and Cu can form Cu and Cu. We will call such ions Type II cations and their compounds Type II binary compounds. 

Type II binary ionic compounds with the metal possessing more than one type of cation... 

Type I and II binary compounds are neutral, ionic compounds that contain two parts a cation and an anion. When a metal is the cation and a nonmetal is an anion, the following rules are used ... 

Type III binary compounds are neutral, covalent compounds that contain two nonmetals. Type III naming is similar to Type I and II using the following rules ... 

OBJECTIVE To review the naming of Type I, Type II, and Type III binary compounds. 

Remember that when a metal is present that forms more than one cation, a Roman numeral is required to specify the cation charge, just as in naming Type II binary ionic compounds. For example, the compound FeS04 is called iron(II) sulfate, because it contains Fe " (to balance the 2- charge on S04 ). Note that to determine the charge on the iron cation, you must know that sulfate has a 2 charge. 

Solid solutions are very common among structurally related compounds. Just as metallic elements of similar structure and atomic properties form alloys, certain chemical compounds can be combined to produce derivative solid solutions, which may permit realization of properties not found in either of the precursors. The combinations of binary compounds with common anion or common cation element, such as the isovalent alloys of IV-VI, III-V, II-VI, or I-VII members, are of considerable scientific and technological interest as their solid-state properties (e.g., electric and optical such as type of conductivity, current carrier density, band gap) modulate regularly over a wide range through variations in composition. A general descriptive scheme for such alloys is as follows [41]. 

Many compounds contain one or more polyatomic ions. Often these compounds contain three elements, in which case they are called tertiary compounds. Although they are not binary compounds, they still contain one type of anion and one type of cation. The same naming rules that apply to binary compounds apply to these compounds as well. For example, NH4C1 is called ammonium chloride. Na2S04 is called sodium sulfate. NiS04 is called nickel(II) sulfate. NH4N03 is called ammonium nitrate. 

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