Lewis Structures

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

• 2
• 8
• 6
• 18

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

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

• A
• B
• C
• D

How many valence electrons are in Phosphorus?

• 15
• 4
• 5
• 31

How many electrons does each line indicate are shared?

• 1
• 2
• 3
• 4

This is a correct dot diagram for oxygen (O)

• true
• false

This is a correct dot diagram for carbon (C)

• true
• false

This could be the dot diagram of 

• Ne
• Si
• Al
• Be