The number of electrons with azimuthal quantum numbers l=1 and l=2 for Cr in the ground state electronic configurations are respectively. [Given: Cr (Z=24) ]

Step-by-step solution

The atomic number of Chromium (Cr) is Z = 24 . The ground state electronic configuration of Cr is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹ . The azimuthal quantum number l corresponds to the subshells as follows: l=0 for s , l=1 for p , l=2 for d , and l=3 for f . For l=1 (p-orbitals), the electrons are in 2p⁶ and 3p⁶ . The total number of electrons is 6 + 6 = 12 . For l=2 (d-orbitals), the electrons are in 3d⁵ . The total number of electrons is 5 . Thus, the number of electrons with l=1 is 12 and with l=2 is 5 . Answer: 12 and