Welcome! Melting Point and Freezing Point. Pure, crystalline solids have a characteristic melting point, the temperature at which the solid melts to become a liquid.The transition between the solid and the liquid is so sharp for small samples of a pure substance that melting points can be measured to 0.1 o C.
Periodic Trends in Atomic Properties 15. Why are the periodic trends in electron affinity and ionization energy more similar to each other than they are to the trend in atomic radii? 16. How can you use the periodic table and orbital diagrams to predict relative atomic radii, ionization potentials, and electron affinities of atoms? Exercises 1.