What are the trends and exceptions to the trends in electron affinity? Check all that apply.

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13-01-2020
Chemistry

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What are the trends and exceptions to the trends in electron affinity? Check all that apply.

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Diatonic254 Diatonic254 · Answer 1 · 2020-01-20T09:13:12+01:00

The trends and exceptions to the trends in electron affinity;

Elements in Group 14 have larger (more negative) electron affinities than elements in Group 15.
Elements in Group 2 have very large electron affinities.

Explanation:

Electron affinity can be defined as the tendency of a neutral atom to pick an additional electron to its orbital shell. The smaller the atomic radius of an atom, the higher the electron affinity and the less energy is expended in adding an electron to it. This is because the smaller the atomic radius, the stronger the attraction by the nucleus even to its outermost shell. This means less energy is required to add the electron the smaller the atomic radius.

Therefore, electron affinity increases to the right of a period and decreases down a group in the periodic table.

Learn More:

For more on electron affinity check out;

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sarayaffe106 sarayaffe106 · Answer 2 · 2020-06-17T10:31:44+02:00

sarayaffe106 sarayaffe106

17-06-2020

Answer

it is A and C

Explanation:

The electron affinities of the elements in Group 17 are larger (more negative) than the elements in Group 1.

Elements in Group 14 have larger (more negative) electron affinities than elements in Group 15.

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