کينډۍ:Infobox terbium

Terbium, ₆₅Tb
عمومي خواص
Pronunciation	/ˈtɜrbiəm/ ; TUR-bee-əm
Appearance	silvery white
Terbium په دوراني جدول کې
gadolinium ← terbium → dysprosium	‍
اټومي شمیره (Z)	65
گروپ, پیریود	group n/a, period 6
بلاک	f-block
Element category	lanthanide
معياري اټومي وزن (Ar)	کينډۍ:Val
Electron configuration	[Xe] 4f9 6s2
Electrons per shell	2, 8, 18, 27, 8, 2
فزیکي خواص
حالت (at STP)	جامد
دويلې کيدو ټکى	1629 K (1356 °C, 2473 °F)
يشنا ټکی	3396 K (3123 °C, 5653 °F)
Density near r.t.	8.23 g/cm3
when liquid, at m.p.	7.65 g/cm3
Heat of fusion	10.15 kJ/mol
Heat of vaporization	391 kJ/mol
Molar heat capacity	28.91 J/(mol·K)
اټومي خواص
Oxidation states	4, 3, 2, 1 (a weakly basic oxide)
Electronegativity	Pauling scale: 1.2 (?)
Ionization energies	1st: 565.8 kJ/mol ; 2nd: 1110 kJ/mol ; 3rd: 2114 kJ/mol ; ;
Atomic radius	empirical: 177 pm
Covalent radius	194±5 pm
Miscellanea
Crystal structure	hexagonal close-packed (hcp) Hexagonal close packed crystal structure for terbium
Speed of sound thin rod	2620 m/s (at 20 °C)
Thermal expansion	at r.t. α, poly: 10.3 µm/(m·K)
د تودوخې تېرېدنه	11.1 W/(m·K)
Electrical resistivity	α, poly: 1.150 µΩ·m (at r.t.)
Magnetic ordering	paramagnetic at 300 K
Magnetic susceptibility (χmol)	+146,000·10−6 cm3/mol (273 K)
Young's modulus	α form: 55.7 GPa
Shear modulus	α form: 22.1 GPa
Bulk modulus	α form: 38.7 GPa
Poisson ratio	α form: 0.261
Vickers hardness	450–865 MPa
Brinell hardness	675–1200 MPa
CAS Number	7440-27-9
History
Naming	after Ytterby (Sweden), where it was mined
Discovery and first isolation	Carl Gustaf Mosander (1842)
Main isotopes of terbium
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Element navigation

PTterbiumPT

Gd ←

iso
65Tb

ibox E

wd:Q1838

→ Dy

سرچينې

د سرچينو همدا لړليک په ليکنه کې نه ښکاري.

↑ Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

کينډۍ لاسوند[جوړول]

سمونگران د دې کينډۍ په ازمونمخ (جوړول | هېنداره) او ازمونځايونه (جوړول) مخونو کې خپلې تجربې کولای شي.
د دې کينډۍ څېرمه مخونه.

[CIAAW2016-1] Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)

[2] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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