Which element's atomic signature produces the distinctive purple or violet hue in a meteor streak?
Answer
Calcium
The purple, violet, or lilac coloration observed in meteors is specifically identified as the spectral signature of Calcium (Ca). Calcium is an alkaline earth metal; when its atoms are energized by the extreme heat generated during atmospheric entry, the light energy they release falls precisely within the visible spectrum range that the human eye registers as purple or violet. This distinctive emission acts as a powerful chemical marker indicating a notable concentration of calcium minerals within the inbound space rock material, differentiating it from common sodium or magnesium emissions.
Related Questions
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