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.
Quick Facts. Background. The Second Battle of the Marne marked the turning of the tide in World War I. It began with the last German offensive of the conflict and was quickly followed by the first allied offensive victory of 1918.
The World War I First Battle of the Marne featured the first use of radio intercepts and automotive transport of troops in wartime. After French commander in chief Joseph Joffre ordered an offensive in September 1914, General Michel-Joseph Maunouryâs French Sixth Army opened a gap between Germanyâs First and Second Armies.