Boron Atom and Lewis Structures

The video tutorial explains the B2 Lewis structure, focusing on boron's valence electrons and how they form chemical bonds. Initially, electrons are placed between two boron atoms to form a single bond. However, to achieve stability, electrons are moved to form double and then triple bonds. Despite this, boron does not achieve an octet, as it is an exception to the octet rule, requiring only six valence electrons. The tutorial concludes with a correct representation of the B2 Lewis structure, highlighting boron's unique electron configuration.

How many valence electrons does a single boron atom have?

• Six

• Three

• Four

• Two

What is the total number of valence electrons available for the B2 Lewis structure?

• Ten

• Six

• Eight

• Four

What type of bond is initially formed between the two boron atoms?

• No bond

• Double bond

• Single bond

• Triple bond

Why does boron not follow the octet rule?

• It has too many electrons

• It only needs six valence electrons

• It forms a quadruple bond

• It is a metal

What is the final type of bond formed between the two boron atoms in the B2 Lewis structure?

• Quadruple bond

• Triple bond

• Double bond

• Single bond

How many pairs of electrons are shared in the final B2 Lewis structure?

• Four pairs

• Three pairs

• Two pairs

• One pair

What is the significance of the B2 Lewis structure in terms of the octet rule?

• It follows the octet rule perfectly

• It shows an exception to the octet rule

• It has more than eight electrons

• It is irrelevant to the octet rule