# Problem: What are the observed periodic trends in electron affinity? Check all that apply.a. For main-group elements, electron affinity generally becomes more negative as you move to the right across a rowb. For main-group elements, electron affinity generally becomes more positive as you move to the right across a rowc. There is not a corresponding trend in electron affinity going right across a rowd. For main-group elements, electron affinity generally becomes more negative as you move down a columne. For main-group elements, electron affinity generally becomes more positive as you move down a columnf. There is not a corresponding trend in electron affinity going down a column

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Electron affinity - energy required to add an electron to a gaseous atom

Electron Affinity general trend:

###### Problem Details

What are the observed periodic trends in electron affinity? Check all that apply.

a. For main-group elements, electron affinity generally becomes more negative as you move to the right across a row

b. For main-group elements, electron affinity generally becomes more positive as you move to the right across a row

c. There is not a corresponding trend in electron affinity going right across a row

d. For main-group elements, electron affinity generally becomes more negative as you move down a column

e. For main-group elements, electron affinity generally becomes more positive as you move down a column

f. There is not a corresponding trend in electron affinity going down a column

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Based on our data, we think this problem is relevant for Professor Ernst's class at UTAH.