Do the terms "shiny" and "flexible" describe physical or chemical properties of metals?

The terms "shiny" and "flexible" describe physical properties of metal. Physical properties are those which we might observe as general qualities of the metal when we look at it or manipulate it. We can look at a piece of metal and observe a reflective or lustrous quality which might make it look shiny. We might also try to bend or manipulate a piece of metal with our hands to gauge its malleability. Most metals are at least a little bit flexible, and if you'd like to observe this in your own home, you could try bending a piece of silverware or wire. Other physical properties of metal are its ability to conduct heat and electricity, and a solid-at-room-temperature form.

Chemical properties, on the other hand, have much more to do with the chemical or molecular composition of a metallic substance. For example, metals lose their valence electrons very easily. We cannot readily observe this with the naked eye, but it does happen and may eventually have some impact on the physical properties of the metal.