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IYPT Elements

IYPT 2019 Elements 088: Radium: Radiation, watch dials and toothpaste

Element 88 in our International Year of the Periodic Table series is radium. Radium is highly radioactive, but the dangers of radiation were only fully understood after it had been used for a number of years in consumer products.

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IYPT Elements

IYPT 2019 Elements 087: Francium: Not the most reactive group 1 element

Element 87 in our International Year of the Periodic Table series is francium. Vanishingly rare, francium is unstable and radioactive, and also doesn’t conform to expectations about its reactivity.

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IYPT Elements

IYPT 2019 Elements 086: Radon: Background radiation and underground health risk

Element 86 in our International Year of the Periodic Table series is radon. Radon is the biggest source of natural background radiation and also has associated health risks.

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IYPT Elements

IYPT 2019 Elements 085: Astatine: Rare and unstable

Element 85 in our International Year of the Periodic Table series is astatine. Astatine is incredibly scarce on Earth, and there’s so little of it around that we don’t know a great deal about it.

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IYPT Elements

IYPT 2019 Elements 084: Polonium: Radiation poisoning and moon rovers

Element 84 in our International Year of the Periodic Table series is polonium. Polonium is a highly radioactive element which has been used as a heat source for space travel and exploration. It was also the centre of attention in a high-profile poisoning several years ago.

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IYPT Elements

IYPT 2019 Elements 083: Bismuth: Cosmetics and crackling fireworks

Element 83 in our International Year of the Periodic Table series is bismuth. Bismuth’s compounds are used in some cosmetics and are also behind the fizzing, crackling sounds of some fireworks.