Ionic formulas and naming activity
Name_________________________
Date_______________Block_______
Fill in the chart.
Type of ion:
NH4+1
K+1
Li+1
Na+1
Ag+1
Ca+2
Mg+2
Ba+2
Fe+2
Al+3
F-1
Cl-1
Br-1
C2H3O2-1
SO4-2
CO3-2
NO3-1
PO4-3
Cr2O7-2
Name of ion:
Ionic formulas and naming activity
Name_________________________
Date_______________Block_______
Instructions: Complete the formula and name for each pair of ions in table 1 and table 2. Remember to
list the positive ion first!
K
Table 1
F-1
C2H3O2-1
SO4-2
PO4-3
NO3-1
Table 2
Cl-1
CO3-2
Cr2O7-1
Br-1
PO4-3
+1
Li+1
Na+1
Ag+1
Ca+2
NH4+1
Mg+2
Ba+2
Fe+2
Al+3
Ionic formulas and naming activity
Name_________________________
Date_______________Block_______
Questions:
1. Which of your positive ions is not a metal ion?
2. a. What is a binary compound?
b. Which of your negative ions always form binary compounds with metal ions?
3. a. What kinds of positive and negative ions always combine in a one-to-one ratio?
b. Give two examples of compounds with ions in a one-to-one ratio.
4. a. What is the largest total number of ions in any of your formulas?
b. What is the total positive charge and the total negative charge in each formula with this many
ions?
c. Give two examples of these formulas.
5. Why must a roman numeral be used when naming some metal ions?
6. a. All of the compounds in this activity are composed of charged ions. What class of compounds is
composed of ions?
b. What class of compounds is composed of neutral atoms, not ions?
7. Two ionic compounds often react so that the positive and negative ions change places. For example,
AgNO3 and NaCl react to form AgCl and NaNO3.
a. Name the two compounds formed by the reaction between barium nitrate and potassium sulfate.
b. What are the formulas for these compounds?