 Erbium (source code)

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= Erbium
{title2=$\mathrm{Er}$}
{wiki}

<Erbium> is the <chemical element> with <atomic number> 68 and symbol $\mathrm{Er}$. It is a <lanthanide>. Erbium ions in glass can absorb and emit infrared light near telecommunications wavelengths. Erbium-doped optical amplifiers exploit these electronic transitions, linking an element's energy levels to long-distance optical communication.<Periodic Table by Royal Society of Chemistry>[Erbium, element data and uses]{ref}

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