Exercise1: 1- Open an Excel sheet. 2- For group 1 elements: make a 3-coloumn table including the elements’ symbols, atomic numbers, and atomic radii. 3- Draw a line chart, a scatter chart, or a bubble chart to show the trend. 4- Repeat steps 1 and 2 for the second period: Li, Ba,….F Extension: - At home, draw the atomic number vs. radius for group 2 and period 3. - Explain your findings.