The atomic mass of aluminum is 27.0, which is close to the average of the atomic masses of fluorine (19.0) and chlorime (35.5)From these data, do you think that aluminum should be placed between flourine and chlorine in a column of the periodic table? Explain.
No, columns have nothing to do with atomic massColumns sort by valence electron configurationAluminum and halogens have wildly difference properties and as such should not be in the same column.
