question_answer 84)

The unpaired electrons in Al and Si are present in 3p- orbitals. Which electron will experience more effective nuclear charge from nucleus?

Answer:

Al (Z = 13), Si (Z = 14) Effective nuclear charge is calculated as, \[{{Z}^{*}}=Z-\sigma \] Due to greater nuclear charge (Z) the 3p electrons of silicon will experience more effective nuclei charge.