Lewis Structures

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

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• 4
• 6
• 8
• 2

Three pairs of electrons are shared in a

• Single bond
• Double bond
• Triple bond

A covalent bond is

• a bond that shares electrons metallicaly
• A bond that shares electrons with non metals
• Metalloids bonding
• metals and nonmetals bonding

Tags

NGSS.HS-PS1-1

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

• A
• B
• C
• D

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons does each line indicate are shared?

• 1
• 2
• 3
• 4

This could be the dot diagram of

• Mg

• Cl

• C

• O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

Which is the correct molecular structure for carbon dioxide?

• 
• 
• 
• 

Is this the correct structure for CH₂O?

• Yes

• No

Tags

NGSS.HS-PS1-1