Question

Why are there several colours in the flame

Answer 1

each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce. For example, copper produces a blue flame, lithium and strontium a red flame, calcium an orange flame, sodium a yellow flame, and barium a green flame.

Most fireplace fires or campfires produce yellow and orange flames because firewood contains salts. By adding other chemicals, you can change the color of the flames to suit a special occasion or just to be entertained by the changing color patterns.

Answer 2

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each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce. For example, copper produces a blue flame, lithium and strontium a red flame, calcium an orange flame, sodium a yellow flame, and barium a green flame.

Most fireplace fires or campfires produce yellow and orange flames because firewood contains salts. By adding other chemicals, you can change the color of the flames to suit a special occasion or just to be entertained by the changing color patterns.