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Neodymium

Chhiùng Wikipedia lòi
Neodymium,  60Nd
ngoi-kôn
silvery white
Kî-pún sin-sit
Miàng, fù-ho Neodymium, Nd
ngoi-hìn silvery white
Neodymium chhai chû-khì-péu ke vi-chi
Khiâng (sûng-ngièn-chṳ́ fî-kîm-su̍k)
Hoi (hî-yù hi-thí)
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Phìn (lui-kîm-su̍k)
Than (tô-ngièn-chṳ́ fî-kîm-su̍k)
Tham (sûng-ngièn-chṳ́ fî-kîm-su̍k)
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Fuk (sûng-ngièn-chṳ́ fî-kîm-su̍k)
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Lanthanum (lanthanum-hi)
Cerium (lanthanum-hi)
Praseodymium (lanthanum-hi)
Neodymium (lanthanum-hi)
Promethium (lanthanum-hi)
Samarium (lanthanum-hi)
Europium (lanthanum-hi)
Gadolinium (lanthanum-hi)
Terbium (lanthanum-hi)
Dysprosium (lanthanum-hi)
Holmium (lanthanum-hi)
Erbium (lanthanum-hi)
Thulium (lanthanum-hi)
Ytterbium (lanthanum-hi)
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Radium (kán-thú kîm-su̍k)
Actinium (actinium-hi)
Thorium (actinium-hi)
Protactinium (actinium-hi)
Uranium (actinium-hi)
Neptunium (actinium-hi)
Plutonium (actinium-hi)
Americium (actinium-hi)
Curium (actinium-hi)
Berkelium (actinium-hi)
Californium (actinium-hi)
Einsteinium (actinium-hi)
Fermium (actinium-hi)
Mendelevium (actinium-hi)
Nobelium (actinium-hi)
Lawrencium (actinium-hi)
Rutherfordium (ko-thu kîm-su̍k)
Dubnium (ko-thu kîm-su̍k)
Seaborgium (ko-thu kîm-su̍k)
Bohrium (ko-thu kîm-su̍k)
Hassium (ko-thu kîm-su̍k)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (ko-thu kîm-su̍k)
Nihonium (unknown chemical properties)
Flerovium (heu-ko-thu kîm-su̍k)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)


Nd

U
praseodymiumNeodymiumpromethium
ngièn-chṳ́ sì-sú 60
ngièn-chṳ́-liòng (±) 144.242(3)[1]
ngièn-su lui-phe̍t   lanthanum-hi
Chhu̍k, fûn-khî n/a, f-block
chû-khì period 6
thien-chṳ́ phài-lie̍t [Xe] 4f4 6s2
per shell 2, 8, 18, 22, 8, 2
vu̍t-lî sin-chṳt
Siông ku-thí
yùng-tiám 1297 K ​(1024 °C, ​1875 °F)
pui-tiám 3347 K ​(3074 °C, ​5565 °F)
Me̍t-thu near Sit-vûn 7.01 g·cm−3
6.89 g·cm−3
Yùng-fa-ngie̍t 7.14 kJ·mol−1
Chîn-fat-ngie̍t 289 kJ·mol−1
Ngie̍t-yùng-liong 27.45 J·mol−1·K−1
chîn-hi-ap
P (Pa) 1 10 100 1 k 10 k 100 k
chhai T (K) 1595 1774 1998 (2296) (2715) (3336)
Ngièn-chṳ́ sin-chṳt
Yông-fa-su +4, +3, +2 ​(a mildly basic oxide)
Thien-fu-sin Pauling scale: 1.14
Thien-lì-nèn 1st: 533.1 kJ·mol−1
2nd: 1040 kJ·mol−1
3rd: 2130 kJ·mol−1
Ngièn-chṳ́ pan-kang empirical: 181 pm
Khiung-ka pan-kang 201±6 pm
Miscellanea
Chîn-thí keu-chhodouble hexagonal close-packed (dhcp)
Double hexagonal close packed crystal structure for Neodymium
Sâng-suk thin rod 2330 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong α, poly: 9.6 µm·m−1·K−1 (at r.t.)
Ngie̍t-chhòn-thô-li̍t 16.5 W·m−1·K−1
Thien-chú-li̍t α, poly: 643 nΩ·m
Chhṳ̀-sin paramagnetic, antiferromagnetic below 20 K[2]
Young's modulus α form: 41.4 GPa
Shear modulus α form: 16.3 GPa
Bulk modulus α form: 31.8 GPa
Poisson ratio α form: 0.281
Vickers hardness 345–745 MPa
Brinell hardness 265–700 MPa
CAS Registry Number 7440-00-8
Le̍k-sú
Fat-hien Carl Auer von Welsbach (1885)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Neodymium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP
142Nd 27.2% (SF) <53.264
143Nd 12.2% (α) 0.5214 139Ce
144Nd 23.8% 2.29×1015 y α 1.905 140Ce
145Nd 8.3% >6×1016 y (α) 1.5784 141Ce
146Nd 17.2% (α) 1.1822 142Ce
(ββ) 0.0702 146Sm
148Nd 5.7% >3.0×1018 y (α) 0.5986 144Ce
β) 1.9288 148Sm
150Nd 5.6% 6.7×1018 y ββ 3.367 150Sm
Decay modes in parentheses are predicted, but have not yet been observed

Neodymium (Hon-ngî: ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Nd, ngièn-chṳ́ su-muk he 60.

Chhâm-kháu chṳ̂-liau

[phiên-siá | kói ngièn-sṳ́-mâ]
  1. Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
  2. Gschneidner, K. A.; Eyring, L. (1978). Handbook on the Physics and Chemistry of Rare Earths. Amsterdam: North Holland. ISBN 0444850228.