11. Naming covalent compounds
CCl4 C-4 Cl-1
NO2 N-3 O-2
PCl3 P-3 Cl-1
C-4 O-2
CO2
C-4 O-2
CO
Mainly negative ions coming together.
These compounds are not ionic (do not = zero!)
12. Naming covalent compounds
CCl4 C-4 Cl-1
NO2 N-3 O-2
PCl3 P-3 Cl-1
C-4 O-2
CO2
C-4 O-2
CO
Mainly negative ions coming together.
These compounds are not ionic (do not = zero!)
WHAT DO THEY HAVE IN COMMON?
20. Covalent Rules for Naming
• Covalent naming has nothing to do with ion chart.
21. Covalent Rules for Naming
• Covalent naming has nothing to do with ion chart.
• Use the following chart of prefixes for the subscript.
Mono
= 1
Di
= 2
Tri
= 3
Tetra = 4
Penta = 5
Hexa
6
=
Hepta = 7
Octa
= 8
Nona = 9
Deca
= 10
25. More Covalent Rules
• Use the prefixes to represent subscripts.
• NO CRISS CROSSING!
26. More Covalent Rules
• Use the prefixes to represent subscripts.
• NO CRISS CROSSING!
• Never use mono on the first element
27. More Covalent Rules
• Use the prefixes to represent subscripts.
• NO CRISS CROSSING!
• Never use mono on the first element
• Second element still gets ending change.
