DIDYOUKNOW? The biggest-ever fireworks disploy consisted of 479,651 fire Sodi (yell This s eleme a yello when with c Bari (gre This s alkali rapidl green Copper strontiu No single el create a vio mixing copp strontiumy rich purple. Calcium (orange) Another alkali metal. calcium reacts with reasonable strength, therefore providing an orange light to displays.