What are the 10 prefixes used for naming covalent compounds?
Table of Contents
What are the 10 prefixes used for naming covalent compounds?
In This Article
Number of Atoms | Prefix |
---|---|
7 | hepta- |
8 | octa- |
9 | nona- |
10 | deca- |
What is the formula for the covalent compound Hexaboron silicide?
Naming Covalent compounds

A | B |
---|---|
antimony tribromide | SbBr3 |
hexaboron silicide | B6Si |
chlorine dioxide | ClO2 |
hydrogen iodide | HI |
How is naming covalent compounds different from naming ionic compounds?
The names of ionic and covalent compounds follow similar principles: They are usually two words. The less electronegative atom is named first. All you have to do is know the formulas and names of the ions.
When naming a covalent compound what is the first element?
Rule 1. The element with the lower group number is written first in the name; the element with the higher group number is written second in the name. Exception: when the compound contains oxygen and a halogen, the name of the halogen is the first word in the name.

What are the rules for naming ionic compounds?
Rules for naming simple ionic compounds.
- Name the metal by its elemental name.
- Name the nonmetal by its elemental name and an -ide ending.
- Name metals that can have different oxidation states using roman numerals to indicate positive charge. Example Fe2+ is Iron(II)
- Name polyatomic ions by their names.
What are the covalent bond prefixes?
Prefixes are used to denote the numbers of atoms present. If the first element exists as a single atom, the prefix mono- is omitted….Binary molecular (covalent) compounds.
Prefixes used in chemical nomenclature | |
---|---|
prefix | number of atoms |
tetra- | 4 |
penta- | 5 |
hexa- | 6 |