Playing Sports, Staying Healthy. Organized athletics are woven into the fabric of the American tradition. Millions of boys and girls participate in baseball, basketball, track and field, and other sports as part of club and/or school teams. In addition to its established health benefits, sports participation has been lauded for fostering such basic values as fair play, competitiveness and achievement.
The periodic table contains seven rows of elements. The lanthanide series belongs to row six as elements 57-71.
Learn the basics about the periodic table, and how the elements are organised within it. The periodic table consists of 7 rows called Periods, going across, and 18 columns, called Groups going down. The elements in the Periodic Table are arranged according to their atomic number, which is the number of protons in their nucleus. The Period shows the elementâs electron shell that is being filled. For example sodium is in Period 3 and Group 1. So it has electronic configuration 2:8:1.