How did the periodic table get its shape? A. The shape tells us how many atoms exist of each element

B. The middle is empty just in case we discover new elements

C. The shape was random and has no purpose

D. The elements are sorted and grouped by their properties

The tea party movement is a. an official third party that challenges both democrats and republicans in national elections. b. an organized challenge to incumbents in the republican party by the most conservative wing of the republican party. c. an organized challenge to incumbents in the democratic party by the most liberal wing of the democratic party. d. an offspring of the green party that runs for state and local office in many midwestern states. e. the now defunct party that gave way to the republican party at the end of the “second party system.”

Why did the settlement of east texas stop in the late 1710s

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?