chem note 5 and 6

Metal ions

Should be the same name of element

Multivalent ion

When an atomic ion forms more then 1 charge because of the metal having multiple possible charges.

Polyatomic atom

A group of different elements act as a single ion

Formula to name ionic

1. name metal first

2. name the non metal second and change the suffix to -ide

3. write the number of each element as a subscript

Name to formula ionic

1. find the charge of each element

2. determine how many of each element you need to make it neutral

3. write the number of each element as a subscript

Multivalent extension

All transition metals form more then 1 charge, you use roman numerals to identify the charge while naming

Polyatomic extensuon

These can’t be changed and have to be together.

Naming to formula covalent

1. write the name of the first element with the appointed prefix

2. name the second element with prefix AND change the suffix to ide

Formula to naming covalent

1. find the first element and the prefix

2. find the second element and it’s prefix

Covalent bond can be

Single double or triple (share 1 2 or 3).