Please help i don’t understand how to do this

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

What are the 4 phases of matter in order of increasing engery content?

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.