Question

Write the ground state electron configurations of the following ions. (Type your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2. If the configuration is a noble gas, enter the noble gas in brackets, for example [Ne] for F -.)

Pb2+

Au+

Mn2+

Answer 1

Here is Pb. The others are available at the same site. Go to the home page of www.webelements.com, click on the element, then scroll down the right side to find electron configuration and click on it.
http://www.webelements.com/lead/atoms.html