does the compound contain a metal or a polyatomic ion? no. is the first element in the compound...
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Does the compound contain a metal or a polyatomic ion?
NO. Is the first element in the compound hydrogen?
YES
Is the first element in the compound hydrogen?
NO. This is an ionic compound.
Name the positive ion. Is the positive ion a metal?
YES.Is it a metal with only one
possible charge?
Name the metal.
NO. Name the metal followed
by a Roman Numeral equal to
its charge.
Name the negative ion. Is the negative ion a nonmetal?
YES. Name the nonmetal by changing its ending to –ide.
NO. It’s a polyatomic ion.
Name the polyatomic ion.
NO. This is a molecular (covalent) compound.
YES. Put the appropriate prefix in front of the
element name.
NO. Is the subscript on the first element in the compound 2 or greater?
NO. Name the element.
Name the second element by putting the appropriate prefix in front of the element name and
changing the ending to –ide.
NO. It’s a polyatomic ion. Name the
polyatomic ion.
YES. The compound is an acid. Go to the “naming acids
flowchart”
Naming compounds flowchart
Is the ionic compound followed by •#H2O?NO. you are
finished!
YES. Your compound is a hydrate. Follow with the
appropriate prefix to represent the coefficient in
front of the H2O and the word “hydrate.”
Does the compound contain both carbon
and hydrogen?
YES. The compound is organic. Go to the “naming organic
compounds flowchart”
Does the acid contain more than 2 different elements?
NO. It is a binary acid.
Start the acid name with the prefix hydro-
Followed by the root name of the nonmetal
Ending with the suffix –ic acid.
YES. It is a ternary acid containing a polyatomic ion.
Does the name of the polyatomic ion end in –ate?
YES. Change the ending of the
polyatomic ion to –ic and add the word acid.
NO. The polyatomic ion must end in –ite. Change the ending to –ous and
add the word acid.
NAMING ACIDS FLOWCHART
Prefixes to use with molecular compounds and hydrates
• 1- mono• 2-di• 3-tri• 4- tetra• 5- penta• 6-hexa• 7- hepta• 8- octa• 9- nona• 10- deca
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