1. Bell ringer-
Name or generate formulas for the following:
GeS2 Scandium nitride
CaO Vanadium (V) ferrocyanide

2. Covalent Bonds
Nomenclature

3. Covalents watch until 11:25 mark

4. BrightStorm Covalent naming

5. Bellringer Identify the following as ionic or covalent-
Dihydrogen monoxide
MgCl2
Germanium Carbide
Sodium chloride
CH4
Cl2

6. Steps to naming Covalents
Id metal, nonmetal (must not have a metal)
Write out element names, drop
the ending off second one and replace
with –ide
Count how many of each element
you have.
4. Place the prefix that corresponds to the number in front of the element name.

7. Special notes-
Don’t ever simplify covalents
When using tetra or penta with an oxide drop the –a and just use -tetr or –pent
When using mono- with an oxide drop the –o and just use mon-
Don’t use mono- on the first word

8. List of prefixes- # of elements prefix Prefix 1 mono 6 hexa 2 di 7
hepta 3
tri 8
octa 4
tetra 9
nona 5
penta 10
deca

9. Dinitrogen tetrafluoride
Formula
N2F4
SiCl4
ClF3
SiO2
Dinitrogen tetrafluoride
Silicon tetrachloride
Chlorine trifluoride
Silicon dioxide

10. Covalent naming

11. Steps to writing covalent formulas
Id metal, nonmetal (must not have a metal)
Write out symbols.
Read prefix, place corresponding number in the subscript position. If it is a mono-, leave blank don’t write the one.
Don’t simplify!

12. Carbon dioxide
CO2
Phosphorous triiodide
PI3
Sulfur dichloride
SCl2
Nitrogen trifluoride
NF3
Dioxygen difluoride
O2F2

13. Now it’s your turn. On the Nomenclature Worksheet, complete all problems.