Table of Contents
Why iodine has a valency of 1?
iodine valency is -1 because it has 7 electrons in its last shell and it gains one electron to make it stable .
Does iodine have variable valency?
As the number of electrons present in its valence shell =7. That means it has a tendency to accept an electron i.e., it will acquire a negative charge by accepting an electron. Hence, we can conclude that the valency of iodine is −1.
What is valency how it helps in writing formula of a compound?
Valency is the combining power of an element. Elements in the same group of the periodic table have the same valency. The valency of an element is related to how many electrons are in the outer shell.
What is iodine valency?
∴ Iodine valence is -1. It is because in its last shell it has 7 electrons and receives one electron to make it stable.
What is iodine on the periodic table?
iodine (I), chemical element, a member of the halogen elements, or Group 17 (Group VIIa) of the periodic table.
What is iodine atomic number?
53
Iodine/Atomic number
Why is the electronic configuration of iodine?
Iodine atoms have 53 electrons and the electronic shell structure is [2, 8, 18, 18, 7] with Atomic Term Symbol (Quantum Numbers) 2P3/2….Iodine Atomic and Orbital Properties.
| Atomic Number | 53 |
|---|---|
| Electron Configuration | [Kr] 4d10 5s2 5p5 |
| Valence Electrons | 5s2 5p5 |
| Oxidation State | -1 1;3;4;5;6;7 |
What is the electron configuration of iodine?
[Kr] 4d10 5s2 5p5
Iodine/Electron configuration
Is valency helpful in making of compounds?
In ionic compounds, valency gives an indication of the charge an ion formed from a particular element will carry. Thus, when Mg2+and O2− combine to form the ionic compound magnesium oxide, there have to be equal numbers of magnesium cations and oxide anions.
How is the valency of an element determined?
An element’s valency is determined by the number of electrons in its outer shell. Hence, the number of valence electrons obtained from the electronic configuration of the element gives the valency i.e. the number of electrons lost, gained or shared by the element to attain the noble gas configuration.
How is iodine formed?
Now the main sources of iodine are iodate minerals, natural brine deposits left by the evaporation of ancient seas and brackish (briny) waters from oil and salt wells. Iodine is obtained commercially by releasing iodine from the iodate obtained from nitrate ores or extracting iodine vapour from the processed brine.
Why is iodine a compound?
Although it is technically a non-metal, it exhibits some metallic qualities. Iodine is classified as a halogen — a subset of very chemically reactive elements (Group 17 on the periodic table) that exist in the environment as compounds rather than as pure elements.