Question

short answer. explain the rules used when naming the following types of compounds. be sure to include an example. 1. molecular 2. simple ionic (binary) 3. multivalent ionic 2 what is a diatomic molecule? include 3 of the special seven diatomic elements in your answer.

Explanation:

A diatomic molecule is a molecule composed of two atoms. The "special seven" diatomic elements are hydrogen (H₂), nitrogen (N₂), oxygen (O₂), fluorine (F₂), chlorine (Cl₂), bromine (Br₂), and iodine (I₂). For naming molecular compounds, prefixes are used to indicate the number of each type of atom (e.g., mono - for 1, di - for 2, etc.). For simple ionic (binary) compounds, the metal is named first followed by the non - metal with its ending changed to “-ide”. For multivalent ionic compounds, the charge of the metal ion is indicated using Roman numerals in parentheses in the name.

Answer:

1. A diatomic molecule is a molecule made up of two atoms. Example: Oxygen gas exists as O₂. Rules for naming molecular compounds: Use prefixes to denote the number of atoms of each element. For example, CO₂ is carbon dioxide (the prefix "di -" indicates two oxygen atoms).
2. Simple ionic (binary) compounds: Name the metal first and then the non - metal, changing the non - metal's ending to “-ide”. Example: NaCl is sodium chloride.
3. Multivalent ionic compounds: Indicate the charge of the metal ion with Roman numerals in parentheses. Example: FeCl₂ is iron(II) chloride as iron can have a + 2 charge here.