Interpretation:
The formation of ionic compound from elements Aluminum and sulfur needs to be explained.
Concept introduction:
Chemical compounds are formed when the atoms, ions or molecules of two substances are attracted towards each other forming a

Answer to Problem 10PP
2 Aluminum atoms will lose 6 electrons which is gained by 3 of sulfur atoms to form ionic compound
Explanation of Solution
The formation of Aluminum Sulfide is when Aluminum atoms interact with sulfur atom.
The electronic configuration of Aluminum is
Aluminum atom has 3 outermost electrons which can be lost easily as its force of attraction with the nucleus is less and hence becomes a positive ion.
Figure 1
The electronic configuration of sulfur is
Sulfur atom has 2 half filled shells of p orbital. To fill up the half filled shell, it can take up 2 electrons to become a sulfide anion.
Figure 2
When Aluminum looses electrons it becomes positively charged and sulfur atom which gains electrons will become negatively charged. Due to forces of attraction, it forms ionic compound.
Here 2 Aluminum atoms will bond with 3 of Sulfur atoms to form ionic compound
2Aluminum atoms will lose 6 electrons which is gained by 3 of sulfur atoms to form ionic compound
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