Problem: In general, as you go across a period in the periodic table from left to right:(1) the atomic radius __________;(2) the electron affinity becomes __________ negative; and(3) the first ionization energy __________.A) decreases, decreasingly, increasesB) increases, increasingly, decreasesC) increases, increasingly, increasesD) decreases, increasingly, increasesE) decreases, increasingly, decreases

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Establish the trends for atomic radius, electron affinity and first ionization energy to figure out the correct words for the blank statements

Recall that Atomic radius represents the distance from the nucleus to the outer shell of an element. 

Trend of atomic radius in the periodic table:

•decreases going from left to right of a period

•increases going down a group

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Problem Details

In general, as you go across a period in the periodic table from left to right:

(1) the atomic radius __________;

(2) the electron affinity becomes __________ negative; and

(3) the first ionization energy __________.

A) decreases, decreasingly, increases

B) increases, increasingly, decreases

C) increases, increasingly, increases

D) decreases, increasingly, increases

E) decreases, increasingly, decreases

Learn this topic by watchingPeriodic Trends: Electron Affinity Concept Videos
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