Unit 5 - Covalent Bonding Test Review

How are atoms held together in covalent bonds?

• By gaining and losing electrons

• By sharing electrons

Which of the following has the highest melting point?

• O₂

• F₂

• Na₂O

• CCl₄

If the bond between two atoms, both of which are nonmetals, has the electronegativity difference of 0.4, what type of bond do the atoms have?

• Ionic

• Polar Covalent

• Non-polar covalent

What types of elements combine to form ionic bonds?

• Metals and metalloids

• Metals and non metals

• Non metals only

• Metalloids only

• Metals only

What are atoms used to complete an octet but not used in bonding called?

• Shared pair

• Lone pair

• Bonded pair

Which of the following is NOT one of the seven diatomic molecules?

• Hydrogen

• Carbon

• Bromine

• Iodine

• Oxygen

The boiling point of a compound is  $8915\degree C$  (very high), which of the following compounds is most likely being described?

• Ionic Compound

• Covalent Compound

Tags

NGSS.HS-PS1-3

What type of bond will N - H form?

• Polar Covalent

• Non-polar Covalent

• Ionic

Tags

NGSS.HS-PS1-1

If the bond between two atoms has an electronegativity difference of 0.6, what type of bond do the atoms have?

• Ionic

• Polar Covalent

• Non-polar Covalent

Tags

NGSS.HS-PS1-1

Which group has no electronegativity value?

• Halogen

• Transition Metals

• Noble Gases

• Alkaline Earth Metals