
Concept explainers
Interpretation:
The Lewis model for the formula for the compound that forms between magnesium and nitrogen is to be predicted.
Concept introduction: Lewis structure represents the bonds present between the atoms in a molecule and the valence electrons surrounding the atom in the molecule.

Answer to Problem 9.1P
Solution:
The formula for the compound that forms between magnesium and nitrogen is
Explanation of Solution
The rules for writing the Lewis dot structures are as follows,
- Draw Lewis symbols for atoms and indicate the number of valence electrons by dots around the respective atoms.
- Complete the octet on each atom by gaining or losing electrons and write the charge obtained by gaining or losing electrons at the top right corner of each atom.
- Balance the charge on atoms.
The given atoms are magnesium and nitrogen.
The symbol of magnesium is
Figure 1
The symbol of nitrogen is
Figure 2
Magnesium loses
Figure 3
Nitrogen gains
Figure 4
To balance the charges
The final Lewis structure is represented as,
Figure 5
Therefore, the formula of the compound that forms between magnesium and nitrogen is
The formula of the compound that forms between magnesium and nitrogen is
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Chapter 9 Solutions
Principles of Chemistry: A Molecular Approach (3rd Edition)
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