Question

z effective of titanium ​

Answer 1

The effective nuclear charge experienced by a d- electron (last filled)  in titanium is equal to 3.65

• The effective nuclear charge is the difference between the atomic number and the sceening constant.
• The atomic number of titanium is equal to 22 hence, the electronic configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 3d2, 4s2.
• Using slater's rule, we know that the screening constant(s) for a d-electron is equal to 0.35(no. of electrons in the d-orbital) + 1.0(no. of electrons in the inner orbitals).
• The number of electrons in d-orbital is one(excluding the test electron) and the number of inner electrons is equal to 18.
• Hence, screening constant is equal to 18.35
• Therefore, the z effective for titanium is 3.65