1) How many atoms of oxygen are in this formula? a) 4 b) 3 c) 12 d) 2 2) How many atoms of sulfur are in this formula? a) 4 b) 3 c) 12 d) 2 3) What is the total number of Na atoms found here? a) 12 b) 2 c) 24 d) 1 4) What is the coefficient in this formula? a) 6 b) 14 c) 2 5) How many different elements are in this formula? a) 30 b) 3 c) 24 6) How many atoms of oxygen are in this term? a) 12 b) 6 c) 24 7) How many sulfur atoms are in this compound? a) 1 b) 2 c) 3 d) 4 8) How many atoms of krypton (Kr)?  a) 2 b) 1 c) 12 d) 14 9) How many atoms of Cl?  a) 12 b) 1 c) 2 d) 14

Counting Atoms Practice

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