As a solid, liquid, gas, or solution? Oh well.
The appearance of iodine crystals: lustrous, metallic, gray.
physical change
Iodine melting is a physical change.
Iodine is an element and its special property is sublimation, this is a physical change from solid iodine to gasous iodine with no liquid phase(or state) in between.
It is a Physical Process because, there is no chemical change in the Iodine. The only change that occurs is the change from solid to vapor state of the Iodine.
It is a physical change because no new substance is formed, it is the other form of iodine.
It is a physical change because no new substance is formed, it is the other form of iodine.
Appearance is a physical property.
Purple vapour appearing = physical
When iodine is dissolved in alcohol, it forms a mixture of iodine and alcohol, which is physical.
a physical appearance is helpful in a perception
bromine,chlorine and iodine do not have the same physical properties like chlorine is a greenish yellow gas,bromine is brown and iodine is purple liquid so generally they do not have the same physical properties.