Which element of group 17 undergoes sublimation? (2024)

FAQs

Which element of group 17 undergoes sublimation? ›

Only Iodine is a halogen that sublimates, or converts directly into a gaseous form without melting. At normal temperature, iodine is solid. Solid iodine is warmed under vacuum in a sublimation equipment in the laboratory.

Five substances that undergo sublimation are: ammonium chloride, iodine, camphor, naphthalene, dry ice. Q.

Iodine is solid at room temperature. In the laboratory, solid iodine is kept in sublimation apparatus and is heated under vacuum. Because of the reduced pressure, the non-volatile impurities remain behind. Pure iodine volatilizes and settles on a cool surface by condensation.

What things can sublimate? Ans: A range of solids, including water, iodine, arsenic, and solid carbon dioxide (dry ice), can sublimate at normal temperatures and pressures. Other materials can sometimes be made to sublimate by creating conditions of low pressure.

What are halogen elements? The halogen elements are the six elements in Group 17 of the periodic table. Group 17 occupies the second column from the right in the periodic table and contains fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

Sublimation is the transition of a substance directly from the solid to the gaseous state on heating, without passing through the liquid state. Examples: Camphor, Iodine, Ammonium Chloride, Naphthalene, etc.

Fluorine is the most active element in Group 17's elements. Fluorine has a shorter distance between the nucleus and the outermost electrons because the nuclear pull is stronger on the outermost shells.

Group elements are called halogens. The name halogens are from Greek halo (sea salt) and gens (producing formation) and thus means 'sea salt former'. Group contains fluorine, chlorine, bromine, iodine which form salts. Hence they are called halogens.

Benzoic acid, comphor and naphthalene sublime on heating hence, they are purified by sublimation method.

What is the sublimation answer? ›

SUBLIMATION: The change of the solid state of the matter directly on heating to vapor state (without becoming liquid) is called sublimation. The substance is dry ice, Naphthalene balls (mothballs, Iodine, Ammonium chloride, etc.)

sublimation, in physics, conversion of a substance from the solid to the gaseous state without its becoming liquid. An example is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature. The phenomenon is the result of vapour pressure and temperature relationships.

The substances which show the process of sublimation are called sublimates. For example, at a particular temperature, dry ice turns directly to gaseous carbon dioxide. Three three substances that undergo sublimation are Dry ice, camphor, and Naphthalene.

The halogens are located on the left of the noble gases on the periodic table. These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).

Elements in group 17 in the periodic table are called the halogens; elements in group 16 are called the chalcogens.

The elements that are present in group 17 are fluorine, chlorine, bromine, iodine, and astatine. They are called halogens as they react with metals to produce salts. Halogens are nonmetals with high reactivity. These elements are grouped together as they have similar properties.

The substances that sublime readily are Iodine, camphor, etc.

Bromine at room temperature is a liquid and becomes gas when heated so it does not sublime instead undergoes vaporisation.

Bromine is a liquid at room temperature which goes into the gas phase by evaporation or boiling. So it does not undergo sublimation.