Excess sodium phosphate is mixed with 600 ml of strontium chloride at a concentration of 0.425 mol/l. if the reaction has 57.75 yield, what is the mass of dry precipitate actually collected?

51.647 is the answer to the question

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.

The metal is named first