Q2 Benchmark Review 2021-22

When forming an ionic bond, a metal atom

• Gains electrons to form a cation
• Loses electrons to form a cation
• Gains electrons to form an anion
• Loses electrons to form an anion

What elements generally make an ionic bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

What elements generally make a covalent bond?

• metal and nonmetal
• 2 or more nonmetals
• metal
• none of the above

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

An ionic bond forms when 

• Valence electrons are shared
• a sea of mobile electrons surround the cations
• valence electrons are transferred between atoms
• none of the above

Predict the bond that will form between Be and F.

• Ionic
• Covalent

Predict the bond that will form between Se and Cl.

• Ionic
• Covalent

A chemical bond between oppositely charged ions.

• compound
• ion
• covalent bond
• ionic bond

How many atoms of Oxygen are in this compound?

• 4
• 1
• 12
• 7

In this type of bond, electrons are delocalized in a "sea" around positive metal ions.

• Ionic
• Covalent
• Metallic
• Nonpolar