Lewis Structures REVIEW

How many total valence electrons are in a molecule of NH₃?

• 8

• 10

• 12

• 14

Tags

NGSS.MS-PS1-1

How many valence electrons does Hydrogen Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Tags

NGSS.MS-PS1-1

How many valence electrons does Nitrogen Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Tags

NGSS.MS-PS1-1

This is the correct dot diagram for sodium (Na)

• true
• false

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for carbon (C)

• true
• false

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for magnesium (Mg)

• true
• false

Tags

NGSS.MS-PS1-1

This is a correct dot diagram for fluorine (F)

• true
• false

Tags

NGSS.MS-PS1-1

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

How many electrons does each line indicate are shared?

• 1
• 2
• 3
• 4

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18