**Question:** An unidentified element is known to have an electron configuration, [X] ns², in its ground state. This element must be in the same family as:- radon (Rn)- rubidium (Rb)- arsenic- radium (Ra)- lead**Explanation:**The question asks you to determine the family of an element based on its electron configuration. The configuration [X] ns² implies that the element has two electrons in its outermost s subshell in its ground state, indicating it is likely an alkaline earth metal. Consider the periodic table positions to determine the correct family.

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Answered: An unidentified element is known to…

An unidentified element is known to have an electron configuration, [X] ns2, in its ground state. This element must be in the same family as O radon (Rn) Orubidium (Rb) O arsenic radium (Ra) O lead

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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