A student listed three ways to predict if a bond is ionic.
1. A metal is bonded to a non-metal.
2. The electronegativity difference between the atoms is large.
3. Light elements form ionic compounds when bonded to heavy elements.
The methods that can be used to predict whether an ionic bond forms are
Select one:
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3