How would you rank the following elements in the order of increasing size: S, Si, O, Mg, and F?

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter8: The Periodic Table: Structure And Trends
Section: Chapter Questions
Problem 8.50QE
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How would you rank the following elements in the order of increasing size: S, Si, O, Mg, and F?
 
 
 
 
 
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Step 1

Variation of atomic size in groups :-

In a group from top to bottom atomic size increases because down the group from each successive element there is increses in one new outer most shell, due to this effective nuclear charge ( Zeff ) decreases ans size increases .

 

Variation of atomic size in periods :-

In a period from left to right atomic size decreases because across the period electron enters into the same shell , effective nuclear charge ( Zeff ) increases and size decreases

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