How many electrons are there in ground state of "Pu" in "5f orbitals?

" How many electrons are there in ground state of "Pu" in "5" f orbitals? "

How many nodes are there in 5f orbitals?

How many unpaired electrons are present in the ground state of (i) P(Z = 15) (ii) Fe^(2+) (Z = 26) (iii) Cl^(-)(Z = 17) ?

How many electrons are present in 4f orbitals of Gd^(2+)

How many orbital and how many electron are there in each of the first two principal quatum numbers ?

The ratio of the areas of the circular orbits of an electron in the ground state that of the first excited state of an electron in the hydrogen atom is

Show that the kinetic energy of an electron in the first Bohr orbit (ground state) is numerically half of its potential energy.