4.2 according to quantum mechanics, the electron cloud for a hydrogen atom in the ground state has a charge density rho(r)= q e−2r/a, πa3 where q is the charge of the electron and a is the bohr radius. find the atomic polarizability of such an atom. [hint: first calculate the electric field of the electron cloud, ee(r); then expand the exponential, assuming r ≪ a.1
atomic polarisability= alpha = 3π€oa^3
Explanation: shown in the attachment.
Note: p= alpa . E
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