Describe the properties of alkali metals. Based on their electronic arrangement, explain whether they exist alone in nature. (10 points)

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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.

Hi hi answer is and