Chemistry Ch. 7 Binary Ionic Compounds

Nomenclature

the devising or choosing of names for things, especially in a science or other discipline.

Monatomic ion

ion formed from a single atom

1. Cation identified by element name Na⁺

sodium ion

1. Anion name ending dropped and changed to -ide Cl^-

chloride ion

Binary compounds

composed of two elements 

• The total number of + and – charges must be equal.

• Can be written from ions – crossover method

Mg²⁺and Br^-

MgBr2

Al³⁺ and O^2-

Al2O3

Potassium and Iodine

KI Potassium Iodide

Magnesium and chlorine

MgCl2 Magnesium chloride