Exploring Lewis Dot Structures and Covalent Bonding

What is the NASL method used for?

• Drawing covalent bonds

• Drawing ionic bonds

• Determining molecular shape

• Calculating molecular mass

In the NASL method, what does 'N' stand for?

• Neutral charge

• Needed electrons

• Number of atoms

• Noble gases

Which atom is typically placed in the center when drawing Lewis structures?

• The atom with the most valence electrons

• Hydrogen

• The atom with the lowest electronegativity

• The atom with the highest electronegativity

How many valence electrons does carbon have?

• 2

• 8

• 4

• 6

In the example of PH3, how many lone pairs are on the phosphorus atom?

• 3

• 2

• 1

• 0

What type of bond is formed between sulfur and oxygen in SO2?

• Triple bond

• Single bond

• Double bond

• Ionic bond

How many lone pairs are around the fluorine atom in HF?

• 2

• 4

• 3

• 1

What is the total number of electrons needed to satisfy the octet rule for CO2?

• 32

• 8

• 16

• 24

What is the electronegativity difference between carbon and oxygen in CO2?

• 1.78

• 0.89

• 0.44

• 1.34

Which bond is considered very polar based on the electronegativity difference?

• C-H

• C-O

• H-F

• C-Cl