# What is shorthand notation for elements?

It is used as all element in a particular period will share the same electronic configuration to an extent, which is that of a noble gas. For example I'll use titanium, would you rather have to use ${\text{1s"^2 2"s"^2 "2p"^6 "3s"^2 "3p"^6 "4s"^2 "3d}}^{2}$, or ${\text{[Ar]" "4s"^2 "3d}}^{2}$? You would choose the second option, as there are less things to remember, and what's the point of remembering ${\text{1s"^2 2"s"^2 "2p"^6 "3s"^2 "3p}}^{6}$ when its just the electronic configuration of argon.