Counting Atoms Worksheet



NAME: ___________________________________________________________________ PERIOD: ________

Counting Atoms Worksheet

Directions for each problem

1) write down the names of different elements in each compound.

2) write down how many of that particular atom there are

3) how many atoms are there total in the compound.

Examples:

NaOH Na/Sodium - 1

O/Oxygen - 1 3 total

H/ Hydrogen - 1

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MgCl2 Mg/Magnesium – 1

Cl/Chlorine – 2 3 total

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5 ZnSO4 Zn/Zinc – 5

S/Sulfur – 5 30 total

O/Oxygen – 20

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1) CaF2 6) 4 HNO3 11) GePO4

2) P2Br4 7) 4 Li2O 12) 2 NaOH

3) Li2SO4 8) 3 H2O 13) 3CaCl2

4) NaC2H3O2 9) 3 Al2O3 14) Mg(OH)2

5) NH4Cl 10) 5 ZnSO4 15) 2H2O

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