1. please answer both thank you!!
Question 4 Not yet answered Marked out of 1 One result of the discovery of cathode ray
particles was that the theory of the atom was revised to state that Select one: O a. an atom is an
indivisible sphere O b.electrons exist in probability clouds Flag question c, an atom is mostly
made up of empty space O d. an atom contains negatively-charged particles Question 5 For
which of the following explanations did the diffraction of high-speed electrons provide
experimental support? Not yet answered Marked out of 1 Select one: Flag question O a. Bohr's
explanation of line spectra O b. Compton's explanation of the Compton effect O c. Einstein's
explanation of the photoelectric effect O d. De Broglie's explanation of the wave nature of
matter
Solution
4.
(d) An atom contains negatively-charged particles.
5.
De Broglie's explanation of the wave nature of matter.