In general, atomic radii a. increase from left to right in a period and decrease

Question

In general, atomic radii

a. increase from left to right in a period and decrease down agroup b. decrease from left to right and decrease down a group c. increase from left to right in a period and increae down agroup d. none of the above e. decrease from left to right in a period and increase down agroup In general, atomic radii

a. increase from left to right in a period and decrease down agroup b. decrease from left to right and decrease down a group c. increase from left to right in a period and increae down agroup d. none of the above e. decrease from left to right in a period and increase down agroup

Explanation / Answer

Atomic radius decreases as you go across a period (from leftto right) because as you go towards the noble gases, the electronsare attracted to the nucleus more greatly. It increases asyou go down a group because you are increasing the amount ofprotons and neutrons and therefore needing more electronclouds. So the answer is e.

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