What is the chemical formula of an intermetallic compound?
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What is the chemical formula of an intermetallic compound?
MgxAly
c) An intermetallic compound has the general chemical formula MgxAly, where x and y are simple integers.
What is a formula for ionic compounds?
An ionic formula, like NaCl, is an empirical formula. This formula merely indicates that sodium chloride is made of an equal number of sodium and chloride ions. Sodium sulfide, another ionic compound, has the formula Na2S.
How do you identify an ionic compound and a molecular compound?
As a general rule of thumb, compounds that involve a metal binding with either a non-metal or a semi-metal will display ionic bonding. Compounds that are composed of only non-metals or semi-metals with non-metals will display covalent bonding and will be classified as molecular compounds.
How do you find Roman numerals in a chemical formula?
In naming the transition metal ion, add a Roman numeral in parenthesis after the name of the transition metal ion. The Roman numeral must have the same value as the charge of the ion. In our example, the transition metal ion Fe2+ would have the name iron(II). Add the name of the anion to the transition metal ion.
Which are intermetallic compounds?
Intermetallic compounds are defined as solid phases involving two or more metallic or semimetallic elements with an ordered structure and often a well-defined and fixed stoichiometry [1–3].
How do intermetallic compounds differ from the usual chemical compounds?
The bonding in intermetallic compounds is usually metallic. The bonding between a metal and a non-metal can also be metallic. A large number of intermetallic compounds do not obey valency rules or have a constant composition (thus distinguishing them from the usual chemical compounds).
What does the Roman numeral mean in an ionic compound?
The Roman numeral denotes the charge and the oxidation state of the transition metal ion. For example, iron can form two common ions, Fe2+ and Fe3+. To distinguish the difference, Fe2+ would be named iron (II) and Fe3+ would be named iron (III).