ABSTRACT
The normalized wave function of the ground state of a hydrogen-like atom with nuclear charge Z e has the form () |Ψ 〉 = A e − β r , https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429092053/5e12ab0e-ba42-4caa-9bdf-6325e9117d3e/content/eqn16_1.tif"/>
