Question

S orbital an electron may have finite probability of being found in nucleus

Answer 1

No it is not finite ,Actually in a s orbital , there is infinite probability of finding the electron . Because s orbital is spherical in shape and hence the electron can be found anywhere in that space

Answer 2

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An s orbital is spherically symmetrical around the nucleus. In any electron shell, there is only one s orbital. A p orbital has two lobes of electron density with zero electron density (probability of finding an electron) at the nucleus. ... The orbitals in each shell of electron density extend further from the nucleus.