Can someone help me with electron configurations of ions?
Ok, so the instructions are: Write electron configurations for the following ions. Type your answer using the format [Ar].4s2.3d10.4p6. If the ion has a noble-gas configuration, enter only the noble-gas in brackets.
I've already entered these once, and webassign told me they were wrong. Can someone show me what I'm doing wrong?
The only one I got correct was Pb2+: [Xe].6s2.4f14.5d10