1.

Whichof the followingstatementconcerningconcerningprobabilitydensity (Psi^(2)) andradialdistributionfunction (4 pir^(2) Psi) for a s - orbit of H - likespecies is correct ?

Answer»

`Psi^(2)` isminimum at nucleusbut `4 PI r^(2) Psi^(2)`is maximum atnucleus .
`Psi^(2)`is maximum at nucleus but `4 pi r^(2) Psi^(2)` is minimumat nucleus .
Both `Psi^(2)`and `4pir^(2) Psi^(2)`are maximumat nucleus .
Both `Psi^(2)`and `4PI r^(2) Psi^(2)`

Solution :`Psi =(1)/(sqrt(pi)) ((1)/(a_(0)))^(3//2) = e^((-(r)/(a_(0))))`
HENCE , `Psi^(2)` is maximum atr = 0 , but `4 pi r^(2) Psi^(2)`is MINIMUM at r = 0


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