Question

which of the following lists the elements in order of increasing malleability?
sb, sn, se
sn, sb, se
se, sn, sb
se, sb, sn

Explanation:

Malleability is a property of metals where they can be hammered into thin sheets. Selenium (Se) is a non - metal and has low malleability. Antimony (Sb) is a metalloid with some metallic character but less malleable than a pure metal. Tin (Sn) is a metal and is more malleable than the other two. So, the order of increasing malleability is non - metal < metalloid < metal.

Answer:

Se, Sb, Sn