Question

Name a non-metal that has a metallic luster and sublimes on heating.

Answer 1

• Generally, non-metals have a dull appearance whereas metals have a shiny appearance which means that they are lustrous.
• But iodine is a solid non-metal and is lustrous similar to metals.
• It is a volatile compound so it sublimes (directly changes to a gaseous state) when heated and will result in the formation of a violet-colored gas.

Hence, Iodine is the non-metal that has a metallic luster and sublimes on heating.