Look at the image below. Trench
Backar
Forear
Oceanic crust
Continental crust
Accretionary
wedge
Moho
Lithosphere
Lithosphere
Asthenosphere
What kind of plate boundary is shown here?
convergent
divergent
O transform

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 answer is bhope this