Question

name 3 element which have completely filled outermost shell. write their common name and justify it

Answer 1

According to what I studied argon has perfectly filled outermost shell Helium and neon also have complete outermost shell Argon electronic configuration: 2,8,8 , k,l,m shells Helium:2 k shell Neon : 2,8 k and L shell

Answer 2

helium,neon,and argon are those elements which completely filled the outer most shell. helium-He(2) ,neon-Ne (2,8),argon-Ar (2,8,8) .they are nobel gases ..