Elements in the periodic table are grouped as metals, metalloids or semimetals, and nonmetals. The metalloids separate the metals and nonmetals on a periodic table. Also, many periodic table have a stair-step line on the table identifying the element groups.
World War I. First Battle of the Marne begins. On September 6, 1914, some 30 miles northeast of Paris, the French 6th Army under the command of General Michel-Joseph Manoury attacks the right flank of the German 1st Army, beginning the decisive First Battle of the Marne at the end of the first month of World War I.
By the evening of 10th September, the Battle of the Marne was over. During the battle, the French had around 250,000 casualties. Although the Germans never published the figures, it is believed that Geman losses were similar to those of France. The British Expeditionary Force lost 12,733 men during the battle.