Question

pls ans both the que​

Answer 1

3)

BY B.P.T

:. AD / DB = AE / EC

:. AD / 7.2 = 1.8 / 5.4

:. AD = 1.8*7.2 / 5.4

:. AD = 12.96 / 5.4

:. AD = 12 / 5

. :. AD = 2.4 cm

Answer 2

Answer:

Hartree-Fock theory, by assuming a single-determinant form for the wavefunction, neglects correlation between electrons. The electrons are subject to an average non-local potential arising from the other electrons, which can lead to a poor description of the electronic structure.