Erbium

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name Erbium latin Erbium french Erbium german Erbium symbol Er proton number 68 atomic weight 167.26 Pauling electronegativity 1.24 electronic configuration [Xe] 4f125d06s2 >> show long melting point 1770 K, 1497°C, 2726°F boiling point 3141 K, 2868°C, 5194°F group - period 6 state (by 20°C) solid oxidation states +3

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