Describe the structure of the beryllium atom. In your answer make reference to the number of sub-atomic particles and where they are found in the atom.

It shows that the experiment is designed properly.

The question is incomplete. complete question is attached belowanswer: correct answer is option b  i.e.  solid particles  reason: filter paper has small pores, through which smaller particles can pass through. however, solid particles  have relatively larger size. hence, they are least likely to pass through.

The answer is d for this question