Does potassium or lithium have the smaller atomic radius? Support your answer using atomic structure (ex: energy levels, nuclear charge, attraction).

Atomic radii increase in size as you progress down the columns of the periodic table. This is because as you add more electrons, and fill more electron shells, the total radius across the atom increases.

lithium because it atomic number is 3

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.