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What noble gases have the same electron configurations as K+ and Br-?

What noble gases have the same electron configurations as K+ and Br-?

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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What noble gases have the same electron configurations as K+ and Br-?

helium and neon
neon and argon
argon and krypton
argon and xenon
Expert Solution
Step 1 Noble gases

Noble gases are having completely filled outermost shells.

There outer most shell electronic configuration is ns2np6 

He, Ne, Ar, Kr, Xe and Rn are noble gases

These are also called as Zero group elements (OR) VIII group elements

Noble gases are inert gases due to full filled outer most shell

 

 Noble gas             Atomic number

   He                                      2

   Ne                                   10

   Ar                                    18

   Kr                                    36

   Xe                                   54

   Rn                                  86

 

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