Answer correctly for brainleist! (have to be correct) and u get 10 pts!

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

What volume would 2.25 moles of ne has occupy at stp?