Proton Electron
Proton Electron - Related Videos
09:40
Proton Exchange Membrane Fuel Cells
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University The United States consumes a large amount of energy – the current rate is around 97.5 quadrillion BTUs annually. The vast majority (90%) of this energy comes from non-renewable fuel sources. This energy is used for electricity (39%), transportation (28%), industry (22%), and residential/commercial use (11%). As the world has a limited supply of these non-renewable sources, the United States (among others) is...
01:28
Electron Transport Chains
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2019
The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle. The ETC is comprised of...
01:24
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...
02:31
Measuring the Kinetic Isotope Effect on Microbial Electron Transport Using Deuterium Oxide
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2025
Source: Tokunou, Y., et al, Electrochemical Detection of Deuterium Kinetic Isotope Effect on Extracellular Electron Transport in Shewanella oneidensis MR-1. J. Vis. Exp. (2018)This video demonstrates a whole-cell electrochemical method to assess how proton transfer affects extracellular electron transport (EET) in electroactive bacteria. By replacing protons with deuterons using deuterium oxide, the method measures changes in current to reveal a kinetic isotope effect, highlighting the role of...
01:07
Proton (¹H) NMR: Chemical Shift
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2024
Organic molecules primarily contain carbon and hydrogen atoms. While all the hydrogen isotopes are NMR-active, protium or hydrogen-1 is the most abundant. It has a significant energy separation between its nuclear spin states due to its large gyromagnetic ratio. As per Boltzmann's distribution, an increase in the energy separation implies a greater excess population of nuclei available for excitation, resulting in a strong NMR absorption signal. Absorption signals of all the protium nuclei in a...
FAQs
The electromagnetic force creates electrostatic attraction between the positively charged proton and negatively charged electron. This attraction keeps electrons associated with the nucleus, while the arrangement of electrons around that nucleus determines the structure of the atom. The interaction therefore connects electric charge directly to atomic organization rather than acting as an isolated force between independent particles.
Electron energy levels are quantized, so an electron cannot change its energy by an arbitrary amount. When it moves between allowed levels, the atom absorbs or emits a photon whose energy corresponds to that change. These discrete transitions provide a physical basis for interpreting absorption and emission patterns in studies of atomic behavior.
Nuclear charge and electron arrangement together determine how an atom behaves when its electron population changes. Removing or adding electrons alters the balance associated with the nucleus and produces an ion. Because electron arrangement also influences chemical properties, ion formation links proton-electron behavior to the ways atoms participate in broader chemical and physical systems.
Spectroscopy examines the photons associated with changes between electron energy levels. Absorption indicates that an atom has taken in energy, while emission indicates that energy has been released as an electron changes levels. The resulting patterns connect observable radiation with internal atomic structure, making proton-electron systems useful for studying energy organization in matter.
Atomic electron arrangements provide a foundation for understanding molecular bonding. When atoms combine, the properties associated with their electrons help determine how the resulting molecular structure behaves. Proton-electron analysis therefore extends beyond isolated atoms, connecting nuclear charge and electron organization to chemical relationships among atoms and to the properties of molecules.
These interactions provide a common physical foundation across several areas of research and technology. Electron organization is relevant to semiconductors, charged-particle behavior is important in plasmas, and proton-electron systems contribute to the study of matter in mass spectrometry. Together, these applications show how atomic-scale charge relationships support both fundamental physics and practical analysis.