Answer:
Limitations of Rutherford Atomic Model
Although the Rutherford atomic model was based on experimental observations it failed to explain certain things. Rutherford proposed that the electrons revolve around the nucleus in fixed paths called orbits. ... Ultimately the electrons would collapse in the nucleus.
Evaporation is a physical change. You can tell by the fact that when somthing evaporates, its chemical identity does not change. The only thing that changed is its physical properties.
Answer: The stratosphere!!
Alpha particles; they can be blocked with a sheet of paper