Question

Which of these compounds is most likely to contain an ionic bond?
O CaCl2
O CHA
SO2
O H2

Answer 1

Answer:

O CaCl₂

Explanation:

The compound most likely to contain an ionic bond is CaCl₂ because it is the only specie with a metal and non-metal.

The metal here is Ca and non-metal is Cl.

• In this bond type, there is a transfer of electrons from the metal to the non-metal.
• There must be a significant electronegativity difference between the two bodies for this bond to form.
• The metal Calcium loses two electrons and becomes isoelectronic with argon.
• Two chlorine non-metal gain one of the electrons each and becomes stable.
• The electrostatic attraction between the oppositely charged ions results in the ionic bonding.