Introduction to Lewis Symbols and Bonding

What does a Lewis symbol represent in terms of an element's electrons?

• All electrons in an atom

• The number of protons

• Only the valence electrons

• The atomic number

In an ionic compound, what happens to the electrons?

• They are destroyed

• They are shared equally between atoms

• They are transferred from one atom to another

• They remain unchanged

What is the main characteristic of a covalent bond?

• Electrons are gained

• Electrons are lost

• Electrons are shared

• Electrons are transferred

According to the octet rule, how many electrons do atoms generally seek in their valence shell?

• 8

• 6

• 4

• 2

What type of bond involves the sharing of more than one pair of electrons?

• Hydrogen bond

• Single bond

• Ionic bond

• Double bond

In a triple bond, how many pairs of electrons are shared between two atoms?

• One pair

• Two pairs

• Four pairs

• Three pairs

When drawing Lewis structures, what is the first step?

• Form multiple bonds

• Determine the total number of valence electrons

• Draw the skeletal structure

• Distribute electrons on terminal atoms

For the molecule OF2, how many total valence electrons are there to distribute?

• 16

• 18

• 20

• 22

In the molecule HCN, what type of bond is formed between carbon and nitrogen?

• Triple bond

• Double bond

• Ionic bond

• Single bond

Which of the following elements does not follow the octet rule?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon