IYPT 2019 Elements 020: Calcium: Teeth, bones and cheese

Element 20 in our International Year of the Periodic Table series with the Royal Society of Chemistry is calcium. Found in the body in our bones and teeth, calcium also pops up in cheese-making and construction work. Bones and teeth are composed of hydroxyapatite, a form of calcium phosphate. The human body contains 1 kilogram […]


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