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Properties of Metals - Metallurgy
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Erbium
Atomic Number: 68
Symbol: Er
Atomic Weight: 167.26
Discovery: Carl Mosander 1842 or 1843 (Sweden)
Electron Configuration: [Xe] 4f12 6s2
Word Origin: Ytterby, a town in Sweden
Isotopes: Natural erbium is a mix of six stable isotopes. Nine radioactive isotopes are also recognized.
Properties: The melting point of erbium is 159 C, boiling point is 2863 C, specific gravity is 9.066 (25 C), and valence is 3. Pure erbium metal is soft and malleable with a bright silvery metallic luster. The metal is fairly stable in air.
Uses: Erbium has nuclear and metallurgical uses. It may be added to other metals to lower hardness and improve workability. Erbium oxide is used as a pink colorant in glass and porcelain glaze.
Element Classification: Rare Earth (Lanthanide)
Density (g/cc): 9.06
Melting Point (K): 1802
Boiling Point (K): 3136
Appearance: soft, malleable, silvery metal
Atomic Radius (pm): 178
Atomic Volume (cc/mol): 18.4
Covalent Radius (pm): 157
Ionic Radius: 88.1 (+3e)
Specific Heat (@20 C J/g mol): 0.168
Evaporation Heat (kJ/mol): 317
Pauling Negativity Number: 1.24
First Ionizing Energy (kJ/mol): 581
Oxidation States: 3
Lattice Structure: Hexagonal
Lattice Constant ( ): 3.560
Lattice C/A Ratio: 1.570
References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)
Atomic Number: 68
Symbol: Er
Atomic Weight: 167.26
Discovery: Carl Mosander 1842 or 1843 (Sweden)
Electron Configuration: [Xe] 4f12 6s2
Word Origin: Ytterby, a town in Sweden
Isotopes: Natural erbium is a mix of six stable isotopes. Nine radioactive isotopes are also recognized.
Properties: The melting point of erbium is 159 C, boiling point is 2863 C, specific gravity is 9.066 (25 C), and valence is 3. Pure erbium metal is soft and malleable with a bright silvery metallic luster. The metal is fairly stable in air.
Uses: Erbium has nuclear and metallurgical uses. It may be added to other metals to lower hardness and improve workability. Erbium oxide is used as a pink colorant in glass and porcelain glaze.
Element Classification: Rare Earth (Lanthanide)
Density (g/cc): 9.06
Melting Point (K): 1802
Boiling Point (K): 3136
Appearance: soft, malleable, silvery metal
Atomic Radius (pm): 178
Atomic Volume (cc/mol): 18.4
Covalent Radius (pm): 157
Ionic Radius: 88.1 (+3e)
Specific Heat (@20 C J/g mol): 0.168
Evaporation Heat (kJ/mol): 317
Pauling Negativity Number: 1.24
First Ionizing Energy (kJ/mol): 581
Oxidation States: 3
Lattice Structure: Hexagonal
Lattice Constant ( ): 3.560
Lattice C/A Ratio: 1.570
References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)
Copyright All Rights Reserved by Nigel G Wilcox E-Mail: ngwilcox100@gmail.com
Elements - Alphabetical:
[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]
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Ref: E69
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