TLS Online TPP Program

#Question id: 20159


The ground state configuration of Fe3+ ion in gaseous state is: (At. No. of Fe = 26)

#XL - P Chemistry
  1. [Ar]18 3d3 4s2
  2. [Ar]18 3d6 4s2
  3. [Ar]18 3d5
  4. [Ar]18 3d6