The equation below shows the iron present and the reactants and products of a neutralisation reaction: H^+(aq)+NO3^-(aq)+OH^-(aq)——> NO3^-(aq)+Na^+(aq)+H2O(l) A) Cancel out the spectator Ions the equation B) write ionic equation for this reaction

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.