Why is the periodic table of elements called the most elegant organizational chart ever devised?

what's the passage bud?

b) new machinery hope i

populist movement, in u.s. history, politically oriented coalition of agrarian reformers in the middle west and south that advocated a wide range of economic and political legislation in the late 19th century. thus in 1892 their leaders organized the populist, or people's, party, and the farmers' alliances melted away.