Chemical Bonding/Lewis Dot Structure

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

A covalent bond is

• a bond that shares electrons metallicaly
• A bond that shares electrons with non metals
• Metalloids bonding
• metals and nonmetals bonding

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Metals and nonmetals form which kind of bond?

• Polar covalent
• Ionic
• Non-polar covalent
• Metallic

In the correct Lewis structure for water, how many unshared pairs of electrons will oxygen have?

• 1
• 4
• 3
• 2

Which of the following elements will NOT be surrounded by an octet of electrons in a correctly drawn Lewis structure?

• carbon
• oxygen
• chlorine
• hydrogen

 Choose the structure that forms a triple bond.

• Hydrogen
• Fluorine
• Oxygen
• Nitrogen

In a Lewis structure, what do you do  with the total number of valence if your ion is + charged?

• Divide the valence number by 1
• Multiply the valence number by 1
• Add 1 to the valence number
• Subtract 1 from the valence number

How many covalent bonds does carbon need to form in order to have a full octet?

• 2
• 3
• 4
• 5

Which particle is responsible for bonding?

• Protons

• Electrons

• Neutrons

• Nucleus