World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter3: Chemical Foundations: Elements, Atoms, And Ions
Section: Chapter Questions
Problem 37A
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Generally in a periodic table form left to right in a period the atomic radius decreases while in a group from up to down, the atomic radius increases. In a period the shell Number will be fix but nuclear charge increases,which is responsible for decrease atomic radius in a period. While in a group atomic radius increases because number of shells increases, and nuclear charge becomes less effective as compared to electron - electron repulsion.
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