06.Periodicity of Behavior;
       Sodium Through Argon
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       The Acidic Nonmetals: P, S, and Cl

By the same token, HCl is stronger than HF, even though fluorine is more electronegative and pulls electrons toward itself more than Cl does.

H2S formed from the sulfur of decomposing proteins is responsible for the odor of rotting eggs. HCl is the principal acid found in the digestive system and breaks the bonds between amino acid subunits in the proteins we eat.



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