What is #1s^(2)2s^(2)2p^(6)3s^1# the electron configuration for?
The outer electrons are on the 3rd energy level sub-shell (due to the
There are 1 electrons in total in the final sub-shell (adding all the powers of the 3'rd level)
This means it's in group 1.
From this we can deduce it being Na (Sodium)