Ionic potential

Atomic radius | Ions

Ionic potential is the ratio of the electrical charge (z) to the radius (r) of an ion. As such, this ratio is a measure of the charge density at the surface of the ion; usually the denser the charge, the stronger the bond formed by the ion with ions of opposite charge. The ionic potential gives an indication of how strongly, or weakly, the ion will be electrostatically attracted by ions of opposite charge; and to what extent the ion will be repelled by ions of the same charge. Victor Moritz Goldschmidt, the father of modern geochemistry found that the behavior of an element in its environment could be predicted from its ionic potential and illustrated this with a diagram (plot of the bare ionic radius as a function of the ionic charge). For instance, the solubility of dissolved iron is highly dependent on its redox state. Fe2+ with a lower ionic potential than Fe3+ is much more soluble because it exerts a weaker interaction force with OH− ion present in water and exhibits a less pronounced trend to hydrolysis and precipitation. Under reducing conditions Fe(II) can be present at relatively high concentration in anoxic water, similar to these encountered for other divalent species such as Ca2+ and Mg2+. However, once anoxic ground water is pumped from a deep well and is discharged to the surface, it enters in contact with atmospheric oxygen. Then Fe2+ is easily oxidized to Fe3+ and this latter rapidly hydrolyzes and precipitates because of its lower solubility due to a higher z/r ratio. Millot (1970) also illustrated the importance of the ionic potential of cations to explain the high, or the low, solubility of minerals and the expansive behaviour (swelling/shrinking) of clay materials. The ionic potential of the different cations (Na+, K+, Mg2+ and Ca2+) present in the interlayer of clay minerals also contribute to explain their swelling/shrinking properties. The more hydrated cations such as Na+ and Mg2+ are responsible for the swelling of smectite while the less hydrated K+ and Ca2+ cause the collapse of the interlayer. In illite, the interlayer is totally collapsed because of the presence of the poorly hydrated K+. Ionic potential is also a measure of the polarising power of a cation. Ionic potential could be used as a general criterion for the selection of efficient adsorbents for toxic elements. (Wikipedia).

Ionic Bond

In an ionic bond, two ions are held together by electrostatic force. These two atoms are trying to attain full valence shells of eight electrons. One atom has too many electrons and another has too few so one atom donates electrons and the other accepts them. The donor atom forms a cation,

From playlist Chemistry

Electric Field (2 of 3) Calculating the Magnitude and Direction of the Electric Field

Explains how to calculate the electric field of a charged particle and the acceleration of an electron in the electric field. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts f

From playlist Electricity and Magnetism

Electric Field (3 of 3) Calculating the Electric Field In Between Two Charges

Explains how to calculate the electric field between two charges and the acceleration of a charge in the electric field. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts force

From playlist Electricity and Magnetism

Electric Field (1 of 3) An Explanation

Explains how to determine the direction and magnitude of the electric field from charged particles. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts force on other charges in t

From playlist Electricity and Magnetism

Potential, Potential Difference, and Voltage

Gives a few of the basics of Electric Potential, Electric Potential Difference, and Voltage. For a complete index of these videos visit http://www.apphysicslectures.com

From playlist Phys 331 Videos - Youtube

Chemistry: What is an Ionic Bond? (Intramolecular Forces)

Practice Tests available at http://bit.ly/CHEMTESTS - 50 questions + Complete Answer Key Ionic bonds are one of the 3 main types of intramolecular forces, along with covalent bonds and metallic bonds. Ionic bonds are very strong, due to powerful electrostatic attraction between opposite i

From playlist Chemistry Lessons

Electric Potential In 30 Seconds!!

Can You Find The Electric Potential At The POSITION Of This Electron?!? #Electrical #Engineering #Physics #College #NicholasGKK #Shorts

From playlist Electrical Engineering

IB Chemistry Topic 4.1 Ionic bonding and structure

IB Chemistry Topic 4.1 Ionic bonding and structure How the ionic bond influences the physical and chemical properties of ionic compounds. How to draw ionic electron configurations and Lewis structures for ionic compounds. Describing ionic lattices. PPTs and quizzes are available on http:/

From playlist Topic 4/14 Chemical structure and bonding

Chemistry 107. Inorganic Chemistry. Lecture 13

UCI Chemistry: Inorganic Chemistry (Fall 2014) Lec 13. Inorganic Chemistry -- Ionic Structures View the complete course: http://ocw.uci.edu/courses/chem_107_inorganic_chemistry.html Instructor: Matthew D. Law License: Creative Commons CC-BY-SA Terms of Use: http://ocw.uci.edu/info More co

From playlist Chem 107: Week 5

Lattice Energy of Ionic Compounds, Basic Introduction, Charge vs Ionic Radius

This chemistry video tutorial provides a basic introduction into the lattice energy of ionic compounds. Lattice energy is the amount of energy released when 1 mole of gaseous ions combined to form a solid ionic compound. This video discusses the factors that affect the lattice energy of

From playlist New AP & General Chemistry Video Playlist

Unconventional superconductivity in half-filled ionic Hubbard model: Role of magnetic...by Arti Garg

PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In

From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)

Atomic Bonding {Texas A&M: Intro to Materials}

Tutorial illustrating different types of bonding in solids. Ionic bonding, covalent bonding, metallic bonding, secondary bonding. Illustrated with examples. Video lecture for Introduction to Materials Science & Engineering (MSEN 201/MEEN 222), Texas A&M University, College Station, TX.

From playlist TAMU: Introduction to Materials Science & Engineering | CosmoLearning.org

Materialism Podcast Ep 31: Ionic conduction

Diffusion is when atoms move through a material in response to a concentration gradient. However, some ions can move through a material in response to an electric field and can do so very quickly! Even more remarkable, the motion of ions can be restricted to ions of a certain type such as

From playlist Materialism Podcast

Lecture 01-Jack Simons Electronic Structure Theory- Born-Oppenheimer approximation

The Born-Oppenheimer approximation; non-adiabatic couplings; the electronic and vibration-rotation Schrodigner equations; atomic units; electronic cusps, electronic wave functions and energy surfaces; orbitals and spin-orbitals, Slater determinants; effects of antisymmetry; problems arisin

From playlist U of Utah: Jack Simons' Electronic Structure Theory course

How To Create A Flipboard Mobile App Clone | Ionic | Introduction

Don’t Forget To Hit Subscribe Button! This project series will teach you how to build a mobile app with Ionic. A clone of the Flipboard app. These project sessions will cover all the details (API, Tools, Languages, etc.) necessary to build a complete and operational Flipboard mobile ap

From playlist Create A Flipboard App Clone

Mod-06 Lec-16 Electrical Conduction in Ceramics ( Contd .)

Advanced ceramics for strategic applications by Prof. H.S. Maiti,Department of Metallurgy and Material Science,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in

From playlist IIT Kharagpur: Advanced Ceramics for Strategic Applications | CosmoLearning.org Materials Science

Lec 12 | MIT 5.112 Principles of Chemical Science, Fall 2005

Ionic Bonds - Classical Model and Mechanism View the complete course: http://ocw.mit.edu/5-112F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT 5.112 Principles of Chemical Science, Fall 2005

Ionic crystal structures {Texas A&M: Intro to Materials}

Tutorial video illustrating "Ionic" crystal structures. How do we get these from ionic radius ratios? How do we figure out which sites are occupied? Video lecture for Introduction to Materials Science & Engineering (MSEN 201/MEEN 222), Texas A&M University, College Station, TX. http://e

From playlist TAMU: Introduction to Materials Science & Engineering | CosmoLearning.org

What is a bond?

In the first mini-lecture, we define what a bond is. Are bonds static, or are they dynamic - moving about space more freely than a drawing of it might predict? We also define it by looking at the energetics when two atoms are brought closer and closer together. This is defined as Coulomb’s

From playlist Chemistry

Electric Potential: Visualizing Voltage with 3D animations

Shows how voltage can be visualized as electric potential energy. Includes topics such as why the voltage is the same everywhere inside a metal conductor.

From playlist Physics

Ionic potential

Related pages