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\nElectron Energy: Deriving the Expression\n

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\nBohr's model of the atom says that an electron's energy is set by its orbit around the nucleus. Bohr said that electrons have specific, quantised levels of energy, and that the size of the orbit affects the energy level.\n\nAn electron's...\nBohr's model of the atom says that an electron's energy is set by its orbit around the nucleus. Bohr said that electrons have specific, quantised levels of energy, and that the size of the orbit affects the energy level.\r
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An electron's energy in a certain orbit is made up of two parts: kinetic energy, which comes from moving, and potential energy, which comes from its pull towards the positively charged nucleus. Bohr's model says that these energy levels are quantised, which means that electrons can only have certain discrete amounts of energy.\r
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An electron either takes in or gives off energy in the form of light when it moves from one energy level to another. The photon's energy can be seen as spectral lines, which are the difference in energy between the initial and final states. Bohr's model gives us an expression for the energy levels, which helps us understand why atomic spectra are discrete and why atoms give off or absorb certain wavelengths of light.\n
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Resource Details

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Educator Rating
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Media Length
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5:34
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Grade
9th - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nAudio Visual Representation of Chemistry\n\n
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Date
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2024
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Language
English
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Audiences
For Teacher Use
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Fine Print: Educational Use
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Concepts

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potential energy, kinetic energy, energy, distance
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Additional Tags

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electron energy, energy expression, bohr model, quantized energy levels, energy calculation, atomic orbitals, electron transitions, energy formula, quantum mechanics potential energy kinetic energy, attractive forces, nuclear attraction, energy level, total energy, hydrogen atom, minus kz, energy equals, infinite distance, revolving electron, free electron, mv square, 2π square, attraction, atom, equals, minus, orbit, charge, separated, constant, electron, square, equation, equation 2, expression, nucleus
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