Flame test. Calcium burning in the flame of a bunsen burner producing an orange flame. The colour of the flame is caused by electrons that have been excited to a higher energy state. When they relax they emit energy in the form of a characteristic wavelength of light. The colour of the flame is different for different elements and can be used to identify unknown substances.
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Creative#:
TOP10164334
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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