ASCII PERIODIC TABLE OF THE ELEMENTS
Yb
Relative atomic mass: 173.04 +- 0.03
English: Ytterbium
French: Ytterbium
Croatian: Iterbij
German: Ytterbium
Italian: Itterbio
Spanish: Iterbio
Atomic number: 70
Group numbers: 3
Period: 6
Standard state (20 oC): solid
Discovery: 1878 Jean Charles Galinard de Marignac (CH)
Ytterbium was discovered by Jean Charles Galinard de Marignac (CH) in 1878. Named after Ytterby, a village in Sweden. It is a silvery, lustrous, malleable and ductile metal that oxidizes slowly in air and reacts with water. Ytterbium dust is flammable. Ytterbium is found in minerals such as yttria, monazite, gadolinite and xenotime. It is used in metallurgical and chemical experiments. The price of 99.9 % pure ytterbium ingot is 188.50 € for 25 g.
Electronic configuration: [Xe] 4f14 6s2
Formal oxidation number: +2 +3
Atomic radius: 194 pm
Electronegativities: -
Thermal conductivity: 34.9 W/(m K)
Electrical resistivity (20 oC): 29 microOhm cm
Melting point: 819 oC
Boiling point: 1196 oC
Heat of fusion: 9.2 kJ/mol
Heat of vaporization: 159 kJ/mol
Heat of atomization: 152.8 kJ/mol
69Tm <= 70Yb => 71Lu
ASCII Periodic Table of the Elements
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6 Jan. 2020
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