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Question

What is the valency of Iodine?


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Solution

Valency

  • The valency of an atom refers to its ability to combine with other atoms.
  • The valency of an element determines the number of bonds that an atom can make as part of a complex.
  • The electrons in the atom's outermost orbit are referred to as valence electrons.

Valency of Iodine

  • Iodine is a dark grey or purple blackish nonmetallic element with an atomic number 53 in the Periodic Table.
  • Although it may form compounds with a variety of elements, it is the least reactive and electropositive halogen.
  • It is mostly found as water-soluble iodide in brine pools and oceans on Earth.
  • It is not completely soluble in water, but it can be broken down in certain solvents, such as carbon tetrachloride.
  • The electronic configuration of Iodine can be represented as[Kr]4d105s25p5.
  • This shows the valency of iodine is-1.
  • It is stable because it has 7 electrons in its final shell and gets one electron to make it stable.

Thus the valency of Iodine is -1.


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