Anion Stability & Acid Strength

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Maya Gollamudi 1G
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Anion Stability & Acid Strength

Postby Maya Gollamudi 1G » Sat Dec 07, 2019 11:26 am

How does the stability of the resulting anion change as you go down a group or across a period in the periodic table?

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Re: Anion Stability & Acid Strength

Postby Chem_Mod » Sat Dec 07, 2019 4:42 pm

Across a period, anion stability increases because anions have electrons filling up to the same energy level/shell, but increasing electronegativity and number of protons as you move to the right. This helps with handling the negative charge. Down a group, stability of anion increases because as the size of the element gets larger, the negative charge is better accomodated and distributed over a large area, so has less of an effect on overall stability

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