An element forms an ocide m2o3 what will be the formula of its sulphate ? plsss help​

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.

; lc

The correct answer should be "electrons orbit the nucleus in circular motions exactly as shown on the classic bohr model."