Iodine is minimally soluble in water, with a solubility of 0.03 g per 100 g water.

… Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a … The chemical symbol for Iodine is I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a … Properties, sources and uses of the element iodine. (a) Halogen is a Greek word which means salt-former’. they exist naturally in various mineral salts in […] (b) This is because halogens are reactive non-metals. This is why many people around the world are at risk of developing a deficiency . The crystallinity suggests a regular packing of the molecules. An atom of Iodine in the gas phase, for example, gives off energy when it gains an electron to form an ion of Iodine. Learn iodine atomic number, atomic mass of iodine and iodine uses. Above 700 °C (1,300 °F), dissociation into iodine atoms becomes appreciable. Your body does not make iodine, yet the body needs iodine to produce thyroid hormones and other brain and body functions. The molecular lattice contains discrete diatomic molecules, which are also present in the molten and the gaseous states. atomic number 53 atomic weight 126.9044 melting point 113.5 °C (236 °F) boiling point 184 °C (363 °F) specific gravity 4.93 at 20 °C (68 °F) oxidation states −1, +1, +3, +5, +7 electron Iodine is an important mineral, though few food sources are rich in it. Learn iodine atomic … B.Pt: 184°C. Iodine is water insoluble and turns black when exposed to light, Iodine is used in the diet and if we dont get enough iodine we may get impaired physical development in children. Iodine deficiency disorders result from inadequate thyroid hormone production secondary to insufficient iodine . It is employed in medicine to monitor thyroid gland functioning, to treat goitre and thyroid cancer, and to locate tumours of the brain and of the liver. Iodine. Iodine Properties. 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. The thyroid gland takes up nascent iodine where it creates thyroid hormones T3 and T4.

It is very, very slightly soluble in water, but dissolves freely in organic solvents. Iodine is therefore a low melting point solid. Iodine is the 61st element in terms of abundance, making it not only one of the least abundant nonmetallic elements on Earth but also one of the rarest elements needed for life.

Iodine deficiency has multiple adverse effects on growth and development, and is the most common cause of preventable intellectual disability in the world . As with all other halogens , when freed from its compounds iodine forms diatomic molecules (I2).

An atom of Iodine in the gas phase, for example, gives off energy when it gains an electron to form an ion of Iodine. Learn the 12 most common uses for iodine and the best form to take. Other articles where Iodine-131 is discussed: iodine: Occurrence and distribution: …exceptionally useful radioactive isotope is iodine-131, which has a half-life of eight days.

Iodine (I), chemical element, a member of the halogen elements, or Group 17 (Group VIIa) of the periodic table. Doc Brown's Chemistry KS4 science GCSE/IGCSE/O level Chemistry Revision Notes. Iodine (I) - Iodine with the symbol 'I' is a dark gray or purple blackish nonmetallic element with atomic number 53 in the Periodic Table.

The body needs iodine but cannot make it. It is also used in investigations to trace the course… Iodine has a melting point of 113.5°C, a boiling point of 184.35°C, a specific gravity of 4.93 for its solid state at 20°C, a gas density of 11.27 g/l, with a valence of 1, 3, 5, or 7. Th density of iodine is 4.94 g/mL, which means it will sink in water. Iodine is the most electropositive halogen and the least reactive of the halogens even if it can still form compounds with many elements. Iodine is a Block P, Group 17, Period 5 element. Iodine 131 is a radioisotope with a very short half-life of 8.02 days, making it highly radioactive.

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