For a 3s - orbital, value of `Phi` is given by following realation: `Psi(3s)=(1)/(9sqrt(3))((1)/(a_(0)))^(3//2)(6-6sigma+sigma^(2))e^(-sigma//2)," where " sigma=(2r.Z)/(3a_(0))` What is the maximum radial distance of node from nucleus?
A
`((3+sqrt(3))a_(0))/(Z)`
B
`(a_(0))/(Z)`
C
`(3)/(2)((3+sqrt(3))a_(0))/(Z)`
D
`(2a_(0))/(Z)`
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