Why are metals in aqueous solution basic, and non-metals acidic?

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SUMMARY

Metals in aqueous solutions exhibit basic properties due to their lower electronegativity compared to non-metals, allowing them to donate electrons to hydrogen ions. This electron donation facilitates the release of protons, resulting in a basic solution. Conversely, non-metals, being more electronegative, tend to form larger acid molecules by attracting electrons from water, which leads to proton release and acidic behavior. This distinction is crucial in understanding acid-base theory in aqueous environments.

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  • Understanding of acid-base theory
  • Knowledge of electronegativity concepts
  • Familiarity with molecular bonding in aqueous solutions
  • Basic chemistry principles regarding proton donors and acceptors
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  • Research the role of electronegativity in acid-base reactions
  • Study the properties of Lewis acids and bases
  • Explore the concept of polyprotic acids and their behavior in solution
  • Learn about the interaction of metals and non-metals with water
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Chemistry students, educators, and professionals interested in understanding the behavior of metals and non-metals in aqueous solutions, particularly in relation to acid-base theory.

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Why are metals in aqueous solution basic, and non-metals in water acidic?
I heard an explanation about something being a better proton acceptor or lone pair donor but that doesn't make sense. I couldn't explain in in terms of acid-base theory.

The hand-waving way I saw it was that metals are less electronegative than non-metals, so in water, they'll donate their electron to the hydrogen, the hydrogen will break away from the oxygen because hydrogen hates oxygen hogging its electrons, and because hydrogen electronegative enough.

With non-metals, my hand-waving is that metals are more electronegative, when they bond with water, they'll just form one bigger molecule because they suck on other's electrons without letting go and form one big acid molecule where the least electronegative thing in there is a hydrogen, which falls of into a proton, and it may or may not be polyprotic.
 
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adf89812 said:
I heard

adf89812 said:
The hand-waving way I saw it
These vague "citations" are not acceptable here on PF. Please post exactly what you heard/saw.
 
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