Writing and Naming Ionic and Covalent Compounds

Okay, so today we did a review on Ionic and Covalent compounds which we all learned from last year. If you dont recall any of the terms. Well then here it is.

Ionic Compounds

• contain electrically charged particles called ions
• ions can be positive or negative
• they attract each other strongly because of their opposite charges
• the number of positive charges must equal the number of negative charges in a compound

For example: 

iron (III) sulfide

Example: 

Covalent Compounds

• share electrons
• non-metal with non-metal
• all covalent compounds have two word names
• the first word correspond to the first element in the formula and the second corresponds to the second element in the formula except it ends with "ide"

For example:

Name: Carbon Dioxide

For Example: HF

Name: Hydrogen Fluoride

If there is more than one atom of an element in a molecule, we need to add prefixes to these words to tell us how many are present.  Here are the prefixes you'll need to remember:

*NEED TO KNOW*
Diatomic molecules [highlighted in pink]

VIDEOS! 

 Covalent Bonding ... Or not! 

( Examples of ionic and covalent bonding)