Counting Atoms Jeopardy

Identifying Elements

100

"Li" is the chemical symbol for which element?

The element is Lithium.

200

"Be" is the chemical symbol for which element?

The element is Beryllium.

300

"B" is the chemical symbol for which element?

The element is Boron.

400

"Pm" is the chemical symbol for which element?

The element is Promethium.

500

"At" is the chemical symbol for which element?

The element is astatine.

Subscripts and Coefficients

100

Identify the coefficient:

7H₂SO₄

The coefficient for 7H₂SO₄ is 7.

200

Identify the subscript for Oxygen:

CaCO₃

In the formula CaCO₃, the subscript of Oxygen is 3.

300

Identify the coefficient:

Fe₂O₃

The coefficient for Fe₂O₃ is 1.

400

Identify the total subscript of Hydrogen: 

CH₃OH

The total subscript for Hydrogen is 4.

500

Identify all of the coefficients and subscripts for the following formula:

3C₁₂H₂₂O₁₁

In the chemical formula 3C₁₂H₂₂O₁₁: 

The coefficient is 3.

The subscript for Carbon is 12.

The subscript for Hydrogen is 22.

The subscript for Oxygen is 11.

Calculate Atoms for an Element

100

Calculate the number of Hydrogen atoms:

2C₆H₁₂O₆

24 atoms of Hydrogen.

200

Calculate the number of Sodium atoms:

5NaOH

5 atoms of Sodium.

300

Calculate the number of Oxygen atoms:

8CuSO₄

32 atoms of Oxygen.

400

Calculate the number of Iron atoms:

2(Fe₂N)₄OH₂

16 atoms of Iron.

500

Calculate the number of Nitrogen atoms:

10(NH₄)₂SO₄

20 atoms of Nitrogen.

Calculate Atoms for Formula

100

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

2BrO

Bromine = 2

Oxygen = 2

Total atoms = 4

200

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

2C₆Br₄O₈

Carbon = 12

Bromine = 8

Oxygen = 16

Total Atoms = 36

300

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

3CH₈N₃O₃P

Carbon = 3

Hydrogen = 24

Nitrogen = 9

Oxygen = 9

Phosphorus = 3

Total atoms = 48

400

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

4K₃Nb₃B₂O₁₂

Potassium = 12

Niobium = 12

Boron = 8

Oxygen = 48

Total atoms = 80

500

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

6Na₃Ca₇Al₈Si₇O₉

Sodium = 18

Calcium = 42

Aluminum = 48

Silicon = 42

Oxygen = 54

Total atoms = 204

Calculate Atoms for Formula with Parenthesis

100

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

2Na₂(SO₃)₂

Sodium = 4

Sulfur = 4

Oxygen = 12

Total atoms = 20

200

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

3Sr(HPO₄)₃

Strontium = 3

Hydrogen = 9

Phosphorus = 9

Oxygen = 36

Total atoms = 57

300

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

6Ba₃Cd(PO₃)₄

Barium = 18

Cadmium = 6

Phosphorus = 24

Oxygen = 72

Total atoms = 120

400

Calculate the nu6mber of atoms for each element and the total number of atoms for the chemical formula:

4(Na₂Ca)₂AlF₆

Sodium = 16

Calcium = 8

Aluminum = 4

Florine = 24

Total atoms = 52

500

Calculate the number of atoms for each element and the total number of atoms for the chemical formula:

2(PO₄)₂(NaCl₂)₂

Phosphorus = 4

Oxygen = 16

Sodium = 4

Chlorine = 8

Total atoms = 32