Naming Inorganic Naming Inorganic
CompoundsCompounds
AP Chemistry AP Chemistry
We will focus on:We will focus on:
IonsIons
–CationsCations
Single and polyatomicSingle and polyatomic
–AnionsAnions
–SingleSingle
–PolyatomicPolyatomic
–OxyanionsOxyanions
–Anions derived by adding HAnions derived by adding H
++
CationsCations
Cations are the + Cations are the +
We name monoatomic ions as We name monoatomic ions as
follows:follows:
–Keep name and add the word -ionKeep name and add the word -ion
–Two systemsTwo systems
Fe
2+
iron (II) ion
Fe
3+
iron (III) ion
Also called Fe
2+
ferrous ion
Fe
3+
ferric ion
Cu
+
copper (I) ion
Cu
2+
copper (II) ion
Also called Cu
+
cuprous ion
Cu
2+
cupric ion
Polyatomic cationsPolyatomic cations
Ammonium ionAmmonium ion
Hydronium ionHydronium ion
AnionsAnions
Anions are –Anions are –
Name as follows:Name as follows:
–chop off ending and add chop off ending and add –ide–ide
–For example:For example:
Hydride ionHydride ion
Oxide ionOxide ion
Nitride ionNitride ion
Some polyatomics:Some polyatomics:
OHOH
--
CN-CN- OO
22
2-2-
Polyatomic anions containing Polyatomic anions containing
oxygenoxygen
These are called oxyanionsThese are called oxyanions
–They are named by # of oxygen atomsThey are named by # of oxygen atoms
–For example:For example:
NO
3
-
nitrate
NO
2
-
nitrite
SO
4
2-
Sulfate
SO
3
2-
Sulfite
-ate ending goes to the ion is series with more oxygen
-ite goes to the lower ion in series
Prefixes used when there is up to 4 Prefixes used when there is up to 4
in seriesin series
For example:For example:
ClOClO
44
--
perchlorate ionperchlorate ion
ClOClO
33
--
chlorate ionchlorate ion
ClOClO
22
--
chlorite ionchlorite ion
ClOClO
--
hypochlorite ionhypochlorite ion
Polyatomic anions containing Polyatomic anions containing
oxygen oxygen cont..cont..
Anions w/ HAnions w/ H
++
Carbonate ionCarbonate ion hydrogen carbonatehydrogen carbonate
Phosphate ionPhosphate ion dihydrogen dihydrogen
phosphatephosphate
CO
3
2-
HCO
3
-
PO
3
3-
H
2
CO
3
-
Older method added mono and bi..such as sodium bicarbonate
NaHCO
3
Ionic CompoundsIonic Compounds
Just put them together!Just put them together!
Cation + Anion equals nameCation + Anion equals name
For example:For example:
–Barium bromideBarium bromide
–Aluminum nitrateAluminum nitrate
–Copper (II) perchlorateCopper (II) perchlorate
–Sodium permanganateSodium permanganate
Name / write formulas for the Name / write formulas for the
followingfollowing
Sodium nitriteSodium nitrite
Hydrogen peroxideHydrogen peroxide
KK
22CrCr
22OO
77
Calcium hypochloriteCalcium hypochlorite
Strontium SulfiteStrontium Sulfite
Names of acidsNames of acids
Two ways of naming:Two ways of naming:
–Acids based on anions that end in Acids based on anions that end in –ide–ide
–Acids based on anions that end in Acids based on anions that end in –ate–ate
or or -ite-ite
Cl
-
Chloride ion HCl hydrochloric acid
S
2-
sulfide ion H
2S hydrosulfuric acid
ClOClO
44
--
perchlorate ionperchlorate ion HClOHClO
44perchloric acidperchloric acid
ClOClO
33
--
chlorate ionchlorate ion HClOHClO
33chloric acidchloric acid
ClOClO
22
--
chlorite ionchlorite ion HClOHClO
22chlorous acidchlorous acid
ClOClO
--
hypochlorite ionhypochlorite ion HClOHClO hypochlorous acidhypochlorous acid
Naming Compounds Flashcard Naming Compounds Flashcard
ActivityActivity
Write the following cations and Write the following cations and
anions on flashcards and practice anions on flashcards and practice
combining then together to make combining then together to make
compoundscompounds
Monoatomin CationsMonoatomin Cations
Polyatomic AnionsPolyatomic Anions
Write the polyatomic ions on index cards Write the polyatomic ions on index cards
and the name on the reverse sideand the name on the reverse side
Name the followingName the following
–CC
22HH
3300
22
--
–COCO
33
2-2-
–SOSO
44
2-2-
–ClOClO
33
--
–ClOClO
22
--
–ClOClO
--
Write formulas for the followingWrite formulas for the following
–nitratenitrate
–nitritenitrite
–perchlorate perchlorate
–phosphatephosphate
• Sulfide
• Fluorine
• Bromide
• Iodide
• Chloride
Acids Acids
Make an HMake an H
++
card card
Use the following to make acidsUse the following to make acids
–acetate, Cacetate, C
22HH
3300
22
--
–carbonate, COcarbonate, CO
33
2-2-
–sulfate, SOsulfate, SO
44
2-2-
–chlorate, ClOchlorate, ClO
33
--
–chlorite, ClOchlorite, ClO
22
--
–hypochlorite, ClOhypochlorite, ClO
--
–nitrate, NOnitrate, NO
33
--
–nitrite, NOnitrite, NO
22
--
–perchlorate, ClOperchlorate, ClO
44
--
– phosphate, POphosphate, PO
44
3-3-
Covalent compoundsCovalent compounds
Nonmetal + nonmetalNonmetal + nonmetal
Sharing of electrons!Sharing of electrons!
Element w/ lower electronegativity is Element w/ lower electronegativity is
firstfirst
One – mono six - hexa
Two – di seven - hepta
Three – tri eight - octa
Four – tetra nine - nona
Five – penta ten - deca
Covalent CompoundsCovalent Compounds
Name the followingName the following
–NN
22OO
55
–CClCCl
44
–SS
33NN
22