The document contains data from multiple quizzes and exams, showing the class's goal score of 80% and their actual scores just below the goal. It also contains information about an upcoming mid-term exam covering three units of material and notes the need to ask questions if anything is not understood to improve scores. The document discusses trends in atomic radius, explaining that radius decreases left to right across periods and increases top to bottom in groups on the periodic table. It includes examples comparing elements to determine which has a smaller or larger atomic radius.