If more solute can be dissolved in a solvent, the solution is:
1) unsaturated
2) saturated
3) supersaturated

Answer is: 1) unsaturated.

For example, solubility of potassium chlorate (KClO₃) at 100 grams of water at 80°C is 37.5 g, that means that all 37.5 g is completely dissolves, this is the saturated solution.

If we add 10 grams of potassium chlorate in 100 grams of water at 80°C, there is less solute than the saturated solution, so this is unsaturated solution.

indium, and thallium have three electrons i think

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.