Question

7. From Hf to Hg electron enter in to a) 3d-orbitals b) 4d-orbitals c) 5d-orbitals d) 6d-orbitals​

Answer 1

Answer:

Hf has atomic number 72 and Hg has atomic number 80.

The electrons therefore enter 5d orbital.

We check the nearest noble gas, which is Xenon (Xe) to determine these electronic configurations. Please memorise the noble gas configurations.