colors of elements

photoelectric / atomic emission spectrum of elements

Zink (blue)

Indium (Indigo)

Lithium (Red)

Xenon

Coloured flames of methanol solutions of different compounds, burning on cotton wool.

From left to right: lithium chloride, strontium chloride, calcium chloride, sodium chloride, barium chloride, trimethyl borate, copper chloride, cesium chloride and potassium chloride.

Photoeletric spectrum of the perodic table