Another Interesting Periodic Trend Is the Density of the Elements

Multiple Choice

Another interesting periodic trend is the density of the elements. We find that osmium, Os (atomic number 76) has the greatest density of all elements, and, with some exceptions, the closer an element is positioned to osmium, the greater its density. Based upon this trend, list the following elements in order of increasing density: copper, Cu, gold, Au, platinum, Pt, and silver, Ag.

A) copper, Cu < gold, Au < platinum, Pt < silver, Ag
B) copper, Cu < silver, Ag < gold, Au < platinum, Pt
C) copper, Cu < silver, Ag < platinum, Pt < gold, Au
D) platinum, Pt < gold, Au < silver, Ag < copper, Cu