15 pointsss!! Plz help on this question 29

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

Type the letter that represents the correct location for each particle type below.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?