How do you arrange `Cu, Al and Ag` in the order of increasing thermal conductivity?

Arrange the following in order of their decreasing thermal conductivity

Arrange Ca,Zn,Ba,Fe,Au,Ag and Cu in order of decreasing reactivity.

Arrange aluminum, silver copper and iron in the increasing order of conductivity.

Arrange the hydrides of the elements of group -16 in the order of increasing thermal stability and explain.

Arrange the following solids in order of their increasing electrical conductivities. Metal, Semiconductor, Insulator.

The following compounds have been arranged in order of their increasing thermal stabilities. Ideentify the correct order

Arrange the hydrides of the elements of group-16 in the order of increasing thermal stability and explain the order.

Arrange the follwing complexs-in the increasing order of their molar conductivity.