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A rare-earth element with the symbol Er and atomic number 68. It is a silvery-white solid metal that can be used in optical amplification media for laser applications. It has optical fluorescent properties and is found in chemical combination with other elements.

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A rare-earth element with the symbol Er and atomic number 68. It is a silvery-white solid metal that can be used in optical amplification media for laser applications. It has optical fluorescent properties and is found in chemical combination with other elements.

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It is used to make Erbium doped fibre amplifiers (EDFA) and also used to fabricate DFB lasers.

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hydrogen plus erbium

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The melting point of erbium is 1522.0o C

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The boiling point of erbium of 2510.0o C

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