Question

what is main reason for sheilding effect ?

Answer 1

The main reason of shielding effect is repulsions b/w the electrons of same shell and to the the electrons of outer shell as a result a screening effect gets created and outer electrons feel less attraction ,this is shielding or screening or inert. pair effect.

Answer 2

Operation Desert Shield was a 2006 operation by the Iraqi insurgency and al-Qaeda in Iraq, planned in December 2005 as a push against American forces during the Iraq War. The goal was to destabilize the American foothold in the Anbar province over the course of six months.