Interpretation:
The formula of the ionic compounds formed when
Concept introduction:
Ionic bonds are formed when there is complete transfer of electrons from one atom to another. These atoms either lose or gain electrons to become negatively or positively charged ions. The forces of attraction between these ions causes the ionic bond formation. Ionic compounds are formed only when there is a balance between their charges.

Answer to Problem 84A
The formula of the ionic compounds formed when
Explanation of Solution
The element Chromium is a
As there are 6 half filled shells, it can donate 2 electrons to become
When
When
The formula of the ionic compounds formed when
Chapter 7 Solutions
Chemistry: Matter and Change
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