Search Header Logo
  1. Resource Library
  2. Science
  3. Chemistry
  4. Counting Atoms In Compounds
  5. Counting Atoms
Counting Atoms

Counting Atoms

Assessment

Presentation

Science

8th Grade

Medium

NGSS
MS-PS1-1, MS-PS1-5, MS-ETS1-4

Standards-aligned

Created by

Sabrina Wadhams

Used 11+ times

FREE Resource

4 Slides • 23 Questions

1

Counting Atoms

No one told me math would be involved!

Slide image

2

Learning Objectives

  • We will recognize that chemical formulas are used to identify substances.

  • We will recognize that chemical formulas determine the number of atoms of each element in chemical formulas containing subscripts.

3

Multiple Choice

What is an element?

1

Earth, Wind, & Fire

2

A part or aspect of something abstract, especially one that is essential or characteristic.

3

Each of the 118 substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.

4

A part in an electric teapot, heater, or stove that contains a wire through which an electric current is passed to provide heat.

4

Open Ended

What is a compound?

5

Multiple Choice

How many elements are there: C6H12O6

1

3

2

6

3

12

4

24

6

Multiple Choice

Is this an element or a compound: C4

1

Element

2

Compound

7

Multiple Choice

Is this an element or a compound: CO2

1

Element

2

Compound

8

Multiple Choice

Is this an element or compound: Na2O

1

Element

2

Compound

9

Fill in the Blank

Type answer...

10

Fill in the Blank

Type answer...

11

Slide image

12

Open Ended

What is a subscript?

13

Open Ended

How do you count atoms in a chemical formula?

14

Open Ended

What is a coefficient?

15

Multiple Choice

How many atoms are there: C6H12O6

1

3

2

6

3

12

4

24

16

Multiple Choice

How many atoms are there: N2O

1

2

2

3

3

4

17

Fill in the Blank

Type answer...

18

Slide image

19

Multiple Choice

How many atoms are there: (NH4)2SO4

1

2

2

4

3

8

4

15

20

Multiple Choice

How many atoms are there: 2PO4

1

2

2

4

3

8

4

10

21

Fill in the Blank

Type answer...

22

Fill in the Blank

Type answer...

23

Fill in the Blank

Type answer...

24

Fill in the Blank

Type answer...

25

Poll

Did you like this activity?

Yes

No

26

Open Ended

What can I do to make this activity better?

27

Open Ended

Do you have any questions? (Don't forget to post them and answers them in your Jamboard!)

Counting Atoms

No one told me math would be involved!

Slide image

Show answer

Auto Play

Slide 1 / 27

SLIDE