Lewis Dot Structures and Bonding

The video tutorial covers the basics of Lewis dot diagrams, including how to draw them for single elements, ions, and both ionic and covalent compounds. It explains the rules for placing electrons around elements, the concept of valence electrons, and how to determine the charge of ions. The tutorial also provides step-by-step instructions for drawing Lewis structures for various molecules, emphasizing the importance of electron pairing and the use of lines to represent bonds.

What is the maximum number of dots that can be placed around an element in a Lewis dot diagram?

• 4

• 10

• 6

• 8

When phosphorus becomes an ion, how many electrons does it gain?

• 1

• 4

• 3

• 2

What charge does a beryllium ion have after losing electrons?

• 2-

• 1-

• 2+

• 1+

How are the Lewis dot structures for ionic compounds represented?

• By using circles around atoms

• By drawing arrows between atoms

• By placing ions next to each other

• By drawing lines between atoms

In a covalent bond, what does a line between two atoms represent?

• One electron

• Two electrons

• Three electrons

• Four electrons

How many unpaired electrons does each nitrogen atom have in N2 before bonding?

• 2

• 4

• 1

• 3

What is the total number of electrons around each chlorine atom in Cl2 after bonding?

• 10

• 6

• 8

• 12

In the molecule HBr, how many electrons are around the bromine atom after bonding?

• 6

• 10

• 8

• 12

Which element is placed in the center when drawing the Lewis dot structure for CH3Br?

• None

• Bromine

• Carbon

• Hydrogen

How many total electrons are accounted for in the Lewis dot structure of CH3Br?

• 18

• 12

• 14

• 16