Lewis Dot Structure Review and Puzzle Activity

Multiple Choice

What are valence electrons?

• Electrons in the innermost energy level/shell of an atom.

• Electrons in the nucleus of an atom.
• Electrons in the middle energy level/shell of an atom.

• Electrons in the outermost energy level/shell of an atom.

Multiple Choice

How many electrons should Helium have around its Lewis dot model?

• 1
• 2
• 7
• 8

Drag and Drop

Unlike most elements, ​

Placeholder

only needs ​

Placeholder

electron(s) in its valence shell to be stable.

Drag these tiles and drop them in the correct blank above

4

6

Carbon

Oxygen

Nitrogen

1

Hydrogen

2

Multiple Choice

How many valence electrons should elements in Group 13 have?

• 1
• 5
• 7
• 3

Multiple Choice

How many valence electrons should elements in Group 2 have?

• 4
• 6
• 8
• 2

Multiple Choice

This is a correct dot diagram for oxygen (O)

• True

• False

Multiple Choice

This is a correct dot diagram for fluorine (F)

• True

• False