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electron
[ ih-lek-tron ]
noun
- Also called neg·a·tron [neg, -, uh, -tron]. Physics, Chemistry. an elementary particle that is a fundamental constituent of matter, having a negative charge of 1.602 × 10 −19 coulombs, a mass of 9.108 × 10 −31 kilograms, and spin of ½, and existing independently or as the component outside the nucleus of an atom.
- Electricity. a unit of charge equal to the charge on one electron.
electron
/ ɪˈlɛktrɒn /
noun
- a stable elementary particle present in all atoms, orbiting the nucleus in numbers equal to the atomic number of the element in the neutral atom; a lepton with a negative charge of 1.602 176 462 × 10 –19coulomb, a rest mass of 9.109 381 88 × 10 –31kilogram, a radius of 2.817 940 285 × 10 –15metre, and a spin of 1 2
electron
/ ĭ-lĕk′trŏn′ /
- A stable elementary particle in the lepton family having a mass at rest of 9.107 × 10 -28 grams and a negative electric charge of approximately 1.602 × 10 -19 coulombs. Electrons orbit about the positively charged nuclei of atoms in distinct orbitals of different energy levels, called shells . Electrons are the primary charge carriers in electric current.
- A positron or a negatron.
electron
- An elementary particle with a negative charge and a very small mass . Electrons are normally found in orbits around the nucleus of an atom . The chemical reactions that an atom undergoes depend primarily on the electrons in the outermost orbits (the valence electrons ).
Notes
Word History and Origins
Word History and Origins
Origin of electron1
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Example Sentences
What the Linköping researchers have done is map the molecular interaction between the materials transporting the electrons and the solvent itself by using a series of advanced synchrotron X-ray and neutron techniques.
Red dwarfs are prodigious emitters of stellar wind, a mixture of electrons and other charged particles.
When connected to a power source, electrons travel down the tip and make a quantum leap across the atom-sized gap.
During natural photosynthesis, chlorophyll absorbs light energy and transfers electrons to convert it into chemical energy.
The researchers got another surprise when they looked at the shells under a scanning electron microscope.
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