A paper chromatography Is made of a particular mixture . The coloured bands that result from the chromatography Run are so close to each other that they overlap Making the chromatogram Difficult to interpret what change or changes could be made to increase the separation between the colours? Explain

What record? the question is incomplete

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.

Well you can immediately rule out a and d because if a metal were to lose or gain protons, then it would become a different element all together. the answer here is b because the positive symbol with a number refers to how many electrons the metal can give away to become stable.