In: Chemistry
In this problem we will use a slater determinant to examine a proposed electronic configuration for Lithium 1s3
a) Draw an orbital diagram showing two possible ways to achieve this configuration
b)using the diagram, write the Slater Determinant for this electronic configuration
Electronic configuration of Li
a) orbital diagram
Ist method : 1s2 2s1
IInd method : 1s1 2s1 2p1
b) Slater rule
Ist method : effectve nuclear charge for 2s electron
= 3 - (2 x 0.85) = 1.3
IInd method : effective nucelar charge for 2p electron
= 3 - (1 x 0.35 + 1 x 0.85) = 1.8
So the Ist method orbital electronic configuration is preferred by energy constraints by slater rule.