When iodine reacts with metals, it forms salts.Iodine is a chemically reactive nonmetal and hence it is not found in a free state in nature but it exists as a compound with other elements.Chemical properties of IodineĬhemical properties of iodine are mentioned below. Rest of the isotopes are synthetic isotopes which are artificially prepared in the lab. There are many isotopes of iodine, but only one is stable (and that is 127I).Iodine has an Orthorhombic crystal structure.The atomic mass of iodine is 126.90 u and its density is 4.94 g/cm 3.The melting point of iodine (I 2) is 113.7 ☌ and its boiling point is 184.3 ☌. The pure iodine is solid at STP and it is lustrous metallic gray in color.Physical properties of iodine are mentioned below. The physical and chemical properties of iodine element are mentioned below. Iodine was discovered and first isolated by Bernard Courtois in 1811.Sea water contains around 50 to 60 parts per billion of iodine, while river water contains around 5 parts per billion of iodine.Sea water contains around 34.5 million tons of iodine, and this makes it the largest reservoir of iodine on the earth.Iodine is a very rare element, but it is found in very trace amounts in our surroundings (including soil, plants, water, animals, humans, etc.).Iodine is the 47th abundant element in the solar system.Iodine is the 61st abundant element present on the earth, which is considered to be a rarest element needed for life.The name iodine was derived from the Greek word “iodes”, which means violet color.Interesting facts about iodine element are mentioned below. So the last electron of iodine enters the p-subshell or p-orbital. The simple answer: The elements will lie in the s, p, d or f block will completely depend upon the subshell in which the last electron will enter.įor example the electron configuration of iodine is 4d 10 5s 2 5p 5. How can you determine the blocks-wise position of elements? Orthorhombic Melting point 386.8 K or 113.7 ☌ or 236.6 ☏ Boiling point 457.4 K or 184.3 ☌ or 363.7 ☏ Density 4.94 g/cm 3 Main isotope 127I Who discovered Iodine and when? Bernard Courtois in 1811 CAS number īefore knowing this reason, first of all I want to ask you a simple question. Protons 53 Neutrons 74 Electrons 53 Symbol I Atomic massĢ, 8, 18, 18, 7 Electronic configuration 4d 10 5s 2 5p 5 Atomic radiusġ98 picometers (van der Waals radius) Valence electronsħ 1st Ionization energy 10.451 eV Electronegativity Gas: Violet gas State (at STP) Solid Position in Periodic table Let’s dive right into it! Iodine Element (I) Information Appearance So if you want to know anything about Iodine element, then this guide is for you. In fact, the table mentioned below is the perfect information box (Which gives you every single detail about the Iodine element in Periodic table.) This is a SUPER easy guide on Iodine element.
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