Which one of the following about an electron occupying the lis orbital in a hydrogen atom is inco...

Which one of the following about an electron occupying the lis orbital in a hydrogen atom is incorrect? (The Bohr radius is represented by a_o )
[JEE Main 2019]
(1) The electron can be found at a distance 2 a_0 from the nucleus
(2) The probability density of finding the electron is maximum at the nucleus.
(3) The magnitude of potential energy is double that of its kinetic energy on an average.
(4) The total energy of the electron is maximum when it is at a distance a_o from the nucleus.

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