CP Chemistry: Naming molecular compounds
Naming Molecular Compounds
Molecular Compounds:
· molecules are made of atoms that share their electrons
· usually made entirely of nonmetals
- very few metals can form covalent (sharing) bonds
Naming Molecular Compounds:
· write the first element name
- if it has a subscript, add the appropriate prefix for that number
- never use the prefix "mono-" on the first element!
· write the second element name
- change its ending to "-ide", just like an ionic compound
- if it has a subscript, add the appropriate prefix for that number
That's it! No criss-cross, no parentheses, no roman numerals.
Molecular Compounds Prefixes
6
hexa-
7
hepta-
8
octa-
4 tetra-
9
nona-
5 penta-
10 deca-
1 mono2
3
ditri-
Some weird rules to remember:
· never use "mono-" on the first element
· drop the "a-" when used with elements that start with a vowel
- i.e., tetroxide, pentiodide, etc.
http://www.kentschools.net/ccarman/
October 12, 2011
CP Chemistry: Naming molecular compounds
October 12, 2011
Molecular Compounds Examples
SF6
Cl2O7
nitrogen monoxide
diiodine pentoxide
http://www.kentschools.net/ccarman/