Ha3lec8raptitu Ha3lec8raptitu

31-08-2016
Chemistry

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Why do you think elements must be heated before they emit colored light?

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taskmasters taskmasters

02-09-2016

The colored light emitted is energy and in order to emit energy the element should first obtain energy. The energy absorbed by the substance can be in the form of radiation, heat or electricity. Hope this answers the question. Have a nice day.

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