significance of ψ and ψ2 in chemistry

1.	significance of ψ and ψ2 in chemistry
Answer» ψ is a wave function and refers to the amplitude of electron wave i.e. probability amplitude. It has got no physical significance. The wave function ψ may be positive, negative or imaginary.[ψ]2\xa0is known as probability density and determines the probability of finding an electron at a point within the atom. This means that if:(i) is zero, the probability of finding an electron at that point is negligible.(ii)\xa0[ψ]2\xa0is high, the probability of finding an electron is high i.e. electron is present at that place for a long time.(iii)\xa0[ψ]2\xa0is low. the probability of finding an electron is low i.e. electron is present at that place for a shorter time.

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