Elemental iodine is a solid. But it is a volatile solid in that chemists will use solid iodine in a chamber to "iodine stain" substances in thin layer chromatography. Thus iodine is like having a volatile solid.
solid
Gas of diatomic iodine I2 .
Silicon is a solid.
Sodium is a solid
It is also iodine, as a gas.
Why does the food change purple when iodine is put in it.
gas
gas
sublimation
yes.
It is a solid
Solid
"sublimation"
It is a solid.
Liquid.
Sublimation
solid