Hardware
In recent years, electronics engineers have been trying to develop new brain-inspired hardware that can run artificial intelligence (AI) models more efficiently. While most existing hardware is specialized in either sensing, ...
Engineering
Three-dimensional (3D) printing has become increasingly advanced over the past few years and has been successfully used to create countless items, including toys, furniture and electronic components. As 3D printing equipment ...
Robotics
A team of UCLA engineers and their colleagues have developed a new design strategy and 3D printing technique to build robots in one single step.
Jun 16, 2022
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277
Energy & Green Tech
A coating technique long used in manufacturing of computer chips can potentially enable a battery to charge many more times over its lifetime and make it much easier to manufacture. Scientists at the U.S. Department of Energy's ...
Nov 1, 2023
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104
Energy & Green Tech
Researchers around the world are working on more efficient methods for producing hydrogen. Hydrogen could make a decisive contribution to reducing the consumption of fossil raw materials, especially if it is produced using ...
Oct 4, 2023
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25
Electronics & Semiconductors
The sun sends enormous amounts of energy to the earth. Nevertheless, some of it is lost in solar cells. This is an obstacle in the use of organic solar cells, especially for those viable in innovative applications. A key ...
Sep 26, 2023
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23
Electronics & Semiconductors
A soft and flexible electronic "e-skin," so sensitive it can detect the minute temperature difference between an inhaled and an exhaled breath, could form the basis of a new form of on-skin biosensor. The ultrathin material ...
Nov 29, 2022
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85
Energy & Green Tech
NIMS has developed a durable 1-cm2 perovskite solar cell capable of generating electricity for more than 1,000 continuous hours at a photoelectric conversion efficiency (i.e., power generation efficiency) of more than 20% ...
Oct 7, 2022
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392
Engineering
New research from Binghamton University, State University of New York offers a second life for CDs: Turn them into flexible biosensors that are inexpensive and easy to manufacture.
Jul 26, 2022
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81
Energy & Green Tech
Battery-powered vehicles have made a significant dent in the transportation market. But that market still needs lower cost batteries that can power vehicles for greater ranges. Also desirable are low-cost batteries able to ...
Mar 24, 2022
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95
In atomic physics and quantum chemistry, electron configuration is the arrangement of electrons of an atom, a molecule, or other physical structure. It concerns the way electrons can be distributed in the orbitals of the given system (atomic or molecular for instance).
Like other elementary particles, the electron is subject to the laws of quantum mechanics, and exhibits both particle-like and wave-like nature. Formally, the quantum state of a particular electron is defined by its wave function, a complex-valued function of space and time. According to the Copenhagen interpretation of quantum mechanics, the position of a particular electron is not well defined until an act of measurement causes it to be detected. The probability that the act of measurement will detect the electron at a particular point in space is proportional to the square of the absolute value of the wavefunction at that point.
An energy is associated to each electron configuration and, upon certain conditions, electrons are able to move from one orbital to another by emission or absorption of a quantum of energy, in the form of a photon.
Knowledge of the electron configuration of different atoms is useful in understanding the structure of the periodic table of elements. The concept is also useful for describing the chemical bonds that hold atoms together. In bulk materials this same idea helps explain the peculiar properties of lasers and semiconductors.
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