6.3
Naming Compounds and Writing
Formulas
Name: _____________________________________ Class: ______
Chapter 6
Chemical Bonds
What are we going to learn?
• How to write the name and formula of ionic
and covalently bonded compounds
Naming Ionic Compounds
• Ionic compound ____________: distinguishes the
_______________ from _________ ionic compounds
containing the ______________________________
• ________________________ (ex: calcium chloride)
• Ionic compound ________________: describes the
________ of the ________ in the _______________
• _____________________________________ (ex:
CaCl2)
Binary Compounds
• If a ___________________ is made from only
________________________ is a ______________
compound
(Ex: salt is a binary compound made of sodium and
chlorine - sodium chloride)
What’s in a Name?
• To ________ a binary compound: list the name of the
____________ (+ ion) ___________________ the
name of the ______________ (- ion)
Cations – First in Naming
• ____________: simply the name of the ___________
(no changes)
• Ex: sodium atom and sodium ion
• This _______________ groups ____, _____ and
________________
• Group _____ has a _______________
• Group _____ has a _______________
• Aluminum (Group _____) has a _____________
• _______________________ with
_____________________ possible ________ have a
different naming strategy
• _________ of the ion contains a _________________
to indicate the ___________
• Ex: copper (II) ion
Anions – The Followers
• _________: use name of the ______________ with
the _______________ replacing –ine
(ex: chlorine atom and chloride ion)
• _______________ are on the _________________
of the periodic _________
• Ex: sodium chloride
(cation) (anion)
Formulas
• If you know the __________ of an ionic compound,
you can ________ its _________________________
• Chemical formula includes _____________________
of the elements and ____________ (indicating
_______________________)
How do you write a formula?
• Write the symbol of the __________ first
• Follow with the symbol of the __________
• Use _______________ to show the ________ of the
ions in the compound
Polyatomic Ions
• A ____________________________________ that
has a _____________________________ charge and
___________________
• Ex: nitrate (NO)3-, sulfate (SO4)2-, phosphate (PO4)3-
Molecular Compounds
• _________ and _____________ of a molecular
compound describe the _______ and
_________________________ in a ____________
of the compound
• These _____________ are usually on the
_________________ of the periodic table
• _____________ in the compound
_____________________________
Naming a Molecular Compound
• ____________________ element name appears
_________ (most ________ in the periodic table)
• Name of the ________________________ is
changed to end in the suffix -_______
• Ex: carbon dioxide
• ____________ indicate ____________ of atoms in
the ______________
• Ex: ___ shows that there are _______ carbon
__________ in the molecule
Molecular Formula
• _________ the ______________ for the elements in
the _________ the elements ___________ in the
________
• ______________ in the compound name
_____________ the _____________________ of
____________________ in the molecule
• ____________ appear as _________________ in
the ____________
Writing Chemical Formulas for
Binary Compounds Practice
• 1 - Write the symbols for the elements.
2 - Look up element ion charges and write them as
superscripts to the right of the elemental symbols.
3 - Use the correct combination of ions to produce a
compound with a net charge of zero. Multiple ions are
indicated with subscripts.
• lithium oxide
• potassium chloride
• calcium oxide
• barium bromide
Writing Chemical Formulas for Binary
Compounds with Polyatomic Ions
•
•
•
•
lithium carbonate
calcium nitrate
ammonium sulfide
sodium sulfate
Writing Chemical Formulas for Transition Metals
Practice
•
•
•
•
Lead (IV) carbonate
Copper (II) nitrate
Iron (III) oxide
Tin (IV) fluoride
Writing Chemical Names for Transition
Metals Practice
• Fe(NO3)2
• CuF2
• NiS
• FeCl2
Writing Chemical Formulas Practice
•
•
•
•
•
zinc carbonate
barium oxide
cadmium fluoride
magnesium sulfide
lithium phosphate
Writing Chemical Names Practice
• FeF2
• FeF3
• Hg2Br2
• HgBr2
Writing Chemical Names Practice
•
•
•
•
•
•
BaSO4
FeF2
CuCO3
CaS
MgO
KCl
•
•
•
•
NO
N2O
NO2
N2O5
• N2O3