Emission Spectrum
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PeterPan
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PHYSICS
Atomic and Molecular Physics
Emission Spectrum
Unique light fingerprints reveal the hidden identity of elements across the universe
9 Feb 2026
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Why does each element have a unique emission spectrum?
Because all elements emit the same wavelengths but at different intensities.
Because emission spectra depend only on the temperature of the element, not its atomic structure.
Because the energy levels available to electrons differ for each element, leading to distinct photon energies when electrons transition between levels.
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PHYSICS
Atomic Physics
Emission Spectrum
Green emission lines reveal unique atomic fingerprints in visible light spectra
2 Feb 2026
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Why does each element have a unique green emission line in its emission spectrum?
Because all elements emit green light at the same wavelength due to universal electron transitions.
Because the energy differences between electron states are unique to each element, leading to specific photon energies and wavelengths.
Because green emission lines are caused by the temperature of the element, not electron transitions.
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