Electron Cloud Model

The electron cloud model is a quantum mechanical description of an atom that represents where an electron is likely to be found rather than tracing a fixed path around the nucleus. It uses wave functions to calculate probability density, with regions of high density corresponding to atomic orbitals defined by quantum numbers and characterized by distinct shapes, energies, and orientations. In chemistry, the model explains electron configurations, periodic trends, chemical bonding, and molecular geometry. It also provides a foundation for understanding how atoms interact, why elements show different reactivities, and how spectroscopic measurements reflect changes in electron energy.

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Research

JoVE Journal - Engineering
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Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes

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Cited by 10 •

2016

The following paper presents a novel FE simulation technique (KBC-FE), which reduces computational cost by performing simulations on a cloud computing environment, through the application of individual modules. Moreover, it establishes a seamless collaborative network between world leading scientists, enabling the integration of cutting edge knowledge modules into FE simulations.

Education

JoVE Core - Biology

Electron Orbital Model

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2026

Orbitals are the areas outside of the atomic nucleus where electrons are most likely to reside. They are characterized by different energy levels, shapes, and three-dimensional orientations. The location of electrons is described most generally by a shell or principal energy level, then by a subshell within each shell, and finally, by individual orbitals found within the subshells.The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...

Electron Carriers

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2019

Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons. Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...

Electron Affinity

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2020

The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion). This process can be either endothermic or exothermic, depending on the element. Many of these elements have negative values of EA, which means that energy is released when the gaseous atom accepts an electron. However, for some elements, energy is required for the atom to become negatively charged, and the value of their EA is positive. Just as with ionization energy,...

The Quantum-Mechanical Model of an Atom

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2020

Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra. Schrödinger...

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