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发布日期:2021年12月03日
Chemistry

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Cesium (Australian English: caesium) (atomic symbol Cs) is element 55 on the periodic table. It is in the alkali metals family and is therefore extremely reactive with water, similarly to sodiumandpotassium but to a greater extent. It is lustrous in appearance, with a slight yellow/golden tint, and melts at 28˚C (82˚F) meaning that it is almost liquid at room temperature. It forms +1 cations as do all alkali metals.

590px-Cesium ampoule in acrylic cube.jpg

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