Consider the model of the nitrogen atom. which electron configuration matches this model? 1s22s22p2 1s22s22p3 1s22s22p4 1s22s22p5

0.09 moles of sodium sulfate in 12 ml of solution

Label a-f based on the table using c for concentrated and d for dilute

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.