Understanding Lewis Structures for CO2

What is the first step in drawing the Lewis structure for CO2?

• Calculate the total number of valence electrons

• Write the correct skeletal structure

• Form double or triple bonds

• Distribute electrons among atoms

Why can't hydrogen be a central atom in a Lewis structure?

• It is always a noble gas

• It has too many valence electrons

• It can only form one bond

• It is too electronegative

Which atom is typically placed in the central position of a molecule?

• The atom with the highest atomic number

• The atom with the most valence electrons

• The least electronegative atom

• The most electronegative atom

How do you determine the number of valence electrons for main group elements?

• By their atomic number

• By their period number

• By their electronegativity

• By their group number

What is the total number of valence electrons in CO2?

• 12

• 16

• 18

• 20

What is the first step in distributing electrons among atoms in CO2?

• Place lone pairs on the central atom

• Calculate the total number of electron pairs

• Place two electrons between each pair of atoms

• Form double bonds

When distributing electrons, which atoms should receive lone pairs first?

• The atoms with the fewest bonds

• The most electronegative atoms

• The least electronegative atoms

• The central atom

What is the purpose of forming double or triple bonds in a Lewis structure?

• To make the structure more symmetrical

• To reduce the number of lone pairs

• To achieve octets for all atoms

• To increase the number of valence electrons

How are bonding electron pairs typically represented in Lewis structures?

• As arrows

• As circles

• As lines

• As dots

What is the final Lewis structure of CO2 characterized by?

• Double bonds between carbon and oxygen

• Single bonds between carbon and oxygen

• Triple bonds between carbon and oxygen

• No bonds between carbon and oxygen