IYPT 2019 Elements 056: Barium: Fireworks and X-rays

Element 56 in our International Year of the Periodic Table series is barium. Barium is found in green fireworks, used in X-ray imaging, and also in drilling fluids. When you’re watching a fireworks display, barium compounds (commonly barium nitrate) are responsible for the green colours you see. Small particles of barium compounds can be dispersed […]


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