Chapter 14, Problem 109A

Interpretation Introduction

Interpretation: The element with the given electronic configuration needs to be identified.

Concept Introduction: Electronic configuration of an element shows the arrangement of electrons in atomic orbitals.

Explanation of Solution

According to the diagram, the electronic configuration of the element is as follows: $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^8$

Or,

  $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{8}4s^2$

The total number of electrons in the above-given electronic configuration is 28. Since the number of electrons in an atom is equal to its atomic number, thus, the atomic number of the given element is 28.

Now, from the periodic table, the element corresponding to atomic number 28 is nickel. It is a transition element belonging to the 4^th row or period.

Thus, the given electronic configuration is for the element Nickel.