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.
So there was a method to Mendeleev's madness. Horizontal rows of the periodic table are called periods. Horizontal rows of the periodic table are called periods. Even though some boxes appear to be missing, all of the rows go left to right skipping over the blank areas.Every element in the same period has the same number of atomic orbitals.o there was a method to Mendeleev's madness. Horizontal rows of the periodic table are called periods. Horizontal rows of the periodic table are called periods. Even though some boxes appear to be missing, all of the rows go left to right skipping over the blank areas.