Lewis Dot Structures - Covalent Bonds

The type of bond where valence electrons are SHARED is called: 

• Covalent
• Ionic
• Hydrogen
• Isotope 

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

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Hydrogen needs _____ electrons in its valence shell to be stable.

• 4
• 6
• 8
• 2

How many electrons does each bond line indicate are shared?

• 1
• 2
• 3
• 4

Three pairs of electrons are shared in a

• Single bond
• Double bond
• Triple bond

What two types of atoms make a covalent bond? (Choose 2 answers)

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• A nonmetal and a metalloid

How many single bonds does this have? 

• 1

• 2

• 3

• 4

What is the correct formula for this molecule?

• Si₄F
• SiF₄
• SiF
• Si₄F₄

Tags

NGSS.HS-PS1-3

How many total valence electrons are needed when you draw the Lewis Dot structure for NH₃?

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1