Shielding effect example sentences

However, down the group, due to poor shielding effect of intervening d and f orbitals, the increased effective nuclear charge holds ns electrons tightly (responsible for inter pair effect) and thereby, restricting their participation in bonding.Small decrease in ?iH from Si to Ge to Sn and slight increase in ?iH from Sn to Pb is the consequence of poor shielding effect of intervening d and f orbitals and increase in size of the atom.