The name of the molecular compound, PCl₅ is d. Phosphorus pentachloride
The naming of chemical compounds is giving a special name to a compound that aims to facilitate the classification of compounds and facilitate the identification of a compound. The rules for naming chemical compounds have been determined by the IUPAC (International Union of Pure and Applied Chemistry)
This nomenclature includes the names of ion compounds, covalent compounds, and polyatomics
For ionic compounds consisting of cations (ions +) and anions (ions -)
The naming is preceded by the cation then the anion with the -ide suffix added
Generally for this ion compound consists of metal elements as cations and non-metals as anions
Metal: cation, positively charged.
Nonmetal: negative anion.
The anion cation's charge is crossed
Example:
Fe₂S₃
Fe charge = +3
S charge = -2
The name: metal + non-metal + -ide
Example: BaCl₂ -> Barium chloride
For transition metals, which have several oxidation charges / numbers, write the oxidation number in roman numbers
Example:
SnO: lead (II) oxide
SnO₂: lead (IV) oxide
The naming: non-metal + non-metal + suffix -ide name
In the elements given the prefix mono, di, tri, tetra, penta if more than one element is formed
Example:
SO₂: Sulfur dioxide
SO₃: Sulfur trioxide
PCl₅ is a compound with a bond between nonmetals and nonmetals and is included in a nonpolar covalent bond
PCl₅ is formed from the phosphorus element which binds 5 chlorine elements so that the naming follows the rules:
non-metal + non-metal + suffix -ide
so the naming becomes
Phosphorus pentachloride
the chemical name of a compound
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