The number of f electrons in the ground state electronic configuration of Np (Z = 93) is ___________. (Nearest integer)

The number of 4f electrons in the ground statement electronic configuration of Gd²⁺ is ___________. [Atomic number of Gd = 64]

Number of electrons present in 4f orbital of Ho³⁺ ion is ____________. (Given Atomic No. of Ho = 67)

Number of electrons that Vanadium (Z = 23) has in p-orbitals is equal to _____________