Question

What name should be used for the ionic compound LiI? lithium iodide lithium monoiodide monolithium iodide monolithium monoiodide

Answer 1

Answer:

The correct option is A. Lithium Iodide

Explanation:

According to the system for naming an ionic compound, the name of the metal ion is always written first and the name of the non-metal ion is written after it.

Lithium is a metal whose ion is named as lithium ion Li+ and Iodine is a non-metal whose ion name is iodide and is written as I-. The charges on metal atoms depend on the number of group they are present on, in the periodic table. The charge on the non-metal ion would be the group number minus eight. Hence, lithium iodide is the correct answer.

Answer 2

Lithium iodide should be used for the ionic compound LiI

Further explanation  

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 naming of ion compounds, covalent compounds, and polyatomic  

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  

The Li element is in group 1A (alkali metal) with a charge of +1 (cation)

The I element is in group VIIA (halogen) with a charge of -1 (anion)

The naming is preceded by the cation Li : Lithium

then the anion I : Iodide

So LiI : Lithium Iodide

The prefix mono, di, tri, tetra, penta etc. for non metal element with non metal element compound

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Keywords : the ionic compound, LiI, IUPAC