In flame photometry, which color corresponds to copper emission?

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Multiple Choice

In flame photometry, which color corresponds to copper emission?

Explanation:
In flame photometry, light emitted by excited atoms in the flame appears at characteristic wavelengths that identify the element. Copper, when excited, emits its strongest visible light in the blue‑green region (around 510 nm) as electrons return to lower energy levels, so the flame glows blue‑green. This distinctive color helps distinguish copper from other elements, which produce different flame colors such as yellow for sodium or violet for potassium.

In flame photometry, light emitted by excited atoms in the flame appears at characteristic wavelengths that identify the element. Copper, when excited, emits its strongest visible light in the blue‑green region (around 510 nm) as electrons return to lower energy levels, so the flame glows blue‑green. This distinctive color helps distinguish copper from other elements, which produce different flame colors such as yellow for sodium or violet for potassium.

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