What type of model would you select to make predictions on the effect that climate change is having on the temperature of our planet and why would you select this type of model?

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 formula is (nh4)2co3

Because you ate playdough

The disturbance is only parallel to the motion of the wave.