**Atomic Radius**The atomic radius is the average distance between the nucleus and the outermost (valence) electrons of an atom.**4a. Going across rows in the periodic table, do you expect atomic radius to increase or decrease?**_When moving across a period (row) in the periodic table, atomic radius generally decreases._**b. Going down columns in the periodic table, do you expect atomic radius to increase or decrease?**_When moving down a group (column), atomic radius generally increases._**c. Put the following atoms in order from smallest to largest: Be, F, C, O**_Order (smallest to largest): F, O, C, Be_**d. Put the following atoms in order from smallest to largest: Mg, Ba, Ca, B**_Order (smallest to largest): B, Mg, Ca, Ba_**Ionic Radius**To understand ionic radii, we must also consider the effect of electron-electron repulsion.**a. Cations have less electron-electron repulsion and are smaller than the corresponding neutral atom.**_This occurs because cations have lost one or more electrons, resulting in a smaller electron cloud._**b. Anions have more electron-electron repulsion and are larger than the corresponding neutral atom.**_Anions gain electrons, increasing electron-electron repulsion and expanding the electron cloud._

a. As we go from left to right in a periodic table, atomic radius decreases. On moving from left to…

4a. Going across rows in the periodic table, do you expect atomic radius to increase or decrease? b. Going down columns in the periodic table, do you expect atomic radius to increase or decrease? c. Put the following atoms in order from smallest to largest: Be, F, C, O d. Put the following atoms in order from smallest to largest: Mg, Ba, Ca, B

4a. Going across rows in the periodic table, do you expect atomic radius to increase or decrease? b. Going down columns in the periodic table, do you expect atomic radius to increase or decrease? c. Put the following atoms in order from smallest to largest: Be, F, C, O d. Put the following atoms in order from smallest to largest: Mg, Ba, Ca, B

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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