Explain why Al is a better conductor than Cu using kinetic theory. Use the keywords: metal ions, electrons, effective nuclear charge, atomic radius/ionic status, closely packed/attraction.

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not