Given below are two statements :

Statement I : Bohr's theory accounts for the stability and line spectrum of Li⁺ ion.

Statement II : Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field.

In the light of the above statements, choose the most appropriate answer from the options given below :

A certain orbital has no angular nodes and two radial nodes. The orbital is :

Which of the following forms of hydrogen emits low energy $$\beta$$^- particles?

The orbital having two radial as well as two angular nodes is :