58CeCerio - CeriumMass:140,116 u[Xe] 4f15d16s2Melting point:1071 KBoiling point: 3699KDensity:6689 kg/m3Discovery:1803Ceri...
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Cerio

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Cerio

  1. 1. 58CeCerio - CeriumMass:140,116 u[Xe] 4f15d16s2Melting point:1071 KBoiling point: 3699KDensity:6689 kg/m3Discovery:1803Cerium is one of the 14 chemicalelements following the lanthanum in the periodic table, therefore called lanthanides.Some of its derivatives are used in fireworks as ceramic material in the iron alloyfirestones,cerium oxide is used for polishing lenses and the permanent magnet alloys.Cerium, like all rare earth metals, has a moderate level of toxicity. Cerium is a strongreducing agent and ignites spontaneously on contact with air at temperatures between 65and 80 º C.

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