Assignment 1.3: Naming Compounds
To do this assignment you will need to have your periodic table, and a table of polyatomic
ions (use pages 488, 489 and 491 as your resource):
Part 1: Forming and Naming Binary Compounds
Use your periodic table to fill in the following table:
Metal
Nonmetal
potassium
lithium
aluminum
hydrogen
magnesium
sodium
calcium
sodium
copper (II
magnesium
aluminum
sulphur
phosphorus
chlorine
fluorine
sulphur
oxygen
chlorine
nitrogen
selenium
phosphorus
sulphur
metal
ion
symbol
K+
nonmetal
ion
symbol
S2-
Formula
Name of Formula
K2S
potassium sulphide
Part 2: Forming and Naming Polyatomic compounds
Using the table for polyatomic ions and your periodic table to fill the following
table:
Cation
(+ion)
aluminum
potassium
sodium
ammonium
calcium
magnesium
Anion
(- ion)
hydrogen
sulphide
nitrate
hydrogen
carbonate
chloride
phosphate
sulphate
cation
symbol
anion
symbol
Formula
Name of
Formula
Part 3: Naming and Determining Bonding Properties of Compounds
1. To review the concepts of molecular and ionic compounds please complete the table
below:
A. Name the following compounds and indicate whether they are ionic or
molecular: (Hint: Some of these compounds have common names you will have to
look up in your book and some are elemental compounds, so be careful. Use page
489 for help).
Compound
Name of Compound
Ionic or
Molecular?
C6 H12O6
BaSe
Cl2
SO3
Fe (NO3)2
Cs2O
Li3N
Al4C3
NaBr
N2 O5
C3CH2OH
B. Write the following formulas for the following compounds. Indicate whether
they are ionic or molecular:
Compound
Sodium iodide
chromium (III) carbonate
barium phosphate
silicon tetrahydride
tin (IV) chloride
lead (II) sulphite
zinc hydroxide
sulphur dioxide
oxygen dibromide
carbon tetrafluoride
Chemical Formula
Ionic or
Molecular?
Part 4: Making a Useful Key for Naming compounds
A dichotomous key gives you two choices at each level based upon characteristics of the
concept you are studying. In this case, you want to design a simple key to help you
whenever you are naming chemical compounds. Please fill in the blanks with the
information needed: