Arrange the following elements in order of increasing metallic character: Al, Pt, Cd.
A) Cd

Question

Arrange the following elements in order of increasing metallic character: Al, Pt, Cd.
A) Cd < Pt < Al
B) Al < Pt < Cd
C) Al < Cd < Pt
D) Cd < Al < Pt
E) Pt < Cd < Al

Quizplus · Accepted Answer

Metallic character increases down a group and decreases across a period. Cd is below Al in the periodic table, so it is more metallic. Pt is in the same period as Au, which is a metal, so Pt is also a metal. Therefore, the order of increasing metallic character is Al < Cd < Pt.

Arrange the Following Elements in Order of Increasing Metallic Character