COVALENT COMPOUNDS Covalent compounds are made from two non-metals and so don't follow the normal ionic rules. You can tell if a compound is covalent because it has prefixes modifying the species names. These species tell you exactly how many atoms are in the covalent compound. The prefixes are 5 penta 6 = hexa 9 = nona 10 = deca 1=mono 2 di %3D 7 = hepta 8 = octa 3 = tri 4 = tetra %3D All you have to do is write the species in the compound together, and add a subscript based on the numbers above: nitrogen dioxide: NO, dinitrogen monoxide: N,O phosphorus pentachloride: PC1, sulfur hexafluoride: SF diphosphorus pentoxide: P,O;

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Chapter1: Chemical Foundations
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COVALENT COMPOUNDS
Covalent compounds are made from two non-metals and so don't follow the normal ionic rules. You can tell if a
compound is covalent because it has prefixes modifying the species names. These species tell you exactly how
many atoms are in the covalent compound.
The prefixes are
1= mono
5 = penta
9 = nona
2 = di
3 = tri
6 = hexa
10 = deca
7= hepta
8 = octa
4 tetra
All you have to do is write the species in the compound together, and add a subscript based on the
numbers above:
nitrogen dioxide: NO,
dinitrogen monoxide: N;O
phosphorus pentachloride: PC1,
sulfur hexafluoride: SFs
diphosphorus pentoxide: P;O;
to search
3
6
8
立
Transcribed Image Text:COVALENT COMPOUNDS Covalent compounds are made from two non-metals and so don't follow the normal ionic rules. You can tell if a compound is covalent because it has prefixes modifying the species names. These species tell you exactly how many atoms are in the covalent compound. The prefixes are 1= mono 5 = penta 9 = nona 2 = di 3 = tri 6 = hexa 10 = deca 7= hepta 8 = octa 4 tetra All you have to do is write the species in the compound together, and add a subscript based on the numbers above: nitrogen dioxide: NO, dinitrogen monoxide: N;O phosphorus pentachloride: PC1, sulfur hexafluoride: SFs diphosphorus pentoxide: P;O; to search 3 6 8 立
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