Interpretation: The configuration of the highest occupied energy level for the beryllium element needs to be identified.
Concept Introduction: The electronic configuration represents the arrangement of electrons in atomic orbitals. Here, s , p , d, and f are sublevels in which electrons are distributed. The maximum number of electrons in s , p , d, and f orbitals are 2, 6, 10, and 14.
Answer to Problem 8STP
The correct option is (B).
Explanation of Solution
Reason for correct option:
The given element is beryllium. The
Thus, the filling of electrons takes place in the order s , p , d, and f .
The electronic configuration can be represented as follows:
Thus, the highest occupied energy level is
Therefore, option (C) is correct.
Reason for incorrect options:
The electronic configuration of beryllium is as follows:
The increasing order of energy with respect to principal quantum number is as follows:
Thus, the highest occupied energy level will be with principal quantum number 2. From the electronic configuration, there is 1 sublevel with this principal quantum number that is
Therefore, options (A), (B), (D), and (E) are incorrect options.
Chapter 5 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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