Naming Ionic Compounds
How do you say NaBr?
Follow the following rules:
i.
ii.
The more metallic element is written first (i.e. metal first, non-metal second) = Sodium + Bromine
Change the ending of the last element to “ide” = Sodium bromide
Inquire: Why don’t you say BrNa?
Words to know:


Molecules: a particle that is made up of two or more atoms combined together
Compounds: a particle that is made up of two or more atoms of different elements combined together
Use the periodic table to help you answer these questions.
1. Complete the following table. First, identify each ion and its charge. Then, give the formula and name
for each ionic compound formed. The table has been partially completed to help guide you.
Chloride
ClNaCl
Flouride
___
Oxygen
___
Sodium
Na+
Sodium chloride
MgF2
Magnesium
___
Magnesium flouride
CaO
Calcium
___
Calcium oxide
2. Write the names of the following compounds.
a) KCI
e) ZnS
b) LiBr
c) BaF2
f) SrO
g) AlCl3
d) Ag3P
h) Mg2C
3. Write the chemical formulas for the following compounds.
a) beryllium sulphide
b)silver oxide
e) calcium sulphide
f) lithium nitride
c) sodium bromide
d) zinc chloride
g) rubidium chloride
h) germanium bromide
4. Check your understanding.
a) What is a molecule
b) Draw a model of a molecule of water (H2O)
c) How is a molecule of a compound different from a molecule of an element
d) What information is given by the chemical name of a compound?
e) What additional information is given by the chemical formula of a compound?
f) Complete the following word equations
i.
Calcium
+
Oxygen
=
ii.
Sodium
+
Sulphur
=
iii.
Aluminum
+
Chlorine
=