Use the periodic table to complete these charts. Complete the following charts by counting the atoms in the compounds.



Sodium Oxide - Na2O

Type of atom:
# of atoms:

Total:


Calcium Chloride - CaCl2

Type of atom:
# of atoms:

Total:


Potassium Sulphate K2SO4

Type of atom:
# of atoms:

Total:


Aluminum Iodide - AlI3

Type of atom:
# of atoms:

Total:


NH 4C2 H3O2

Type of atom:
# of atoms:

Total:


2(NH4)2CO3

Type of atom:
# of atoms:

Total:



Pb(NO3)4

Type of atom:
# of atoms:

Total:


Mg 3(PO4)2

Type of atom:
# of atoms:

Total:



Please answer each part like the type of atom it is, and how much atoms it has and at the end everything added together <3