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Europium

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Europi   63Eu
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Scandium(guó-dô gĭng-sṳ̆k)
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Lanthanum(lanthanum-hiê)
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Bék (gĭng-sṳ̆k)(bìng-gĭng-sṳ̆k)
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Thorium(actinium-hiê)
Protactinium(actinium-hiê)
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Neptunium(actinium-hiê)
Plutonium(actinium-hiê)
Americium(actinium-hiê)
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Berkelium(actinium-hiê)
Californium(actinium-hiê)
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Fermium(actinium-hiê)
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Rutherfordium(guó-dô gĭng-sṳ̆k)
Dubnium(guó-dô gĭng-sṳ̆k)
Seaborgium(guó-dô gĭng-sṳ̆k)
Bohrium(guó-dô gĭng-sṳ̆k)
Hassium(guó-dô gĭng-sṳ̆k)
Meitnerium(mâ̤ hiēu dĕk-séng)
Darmstadtium(mâ̤ hiēu dĕk-séng)
Roentgenium(mâ̤ hiēu dĕk-séng)
Copernicium(guó-dô gĭng-sṳ̆k)
Nihonium(mâ̤ hiēu dĕk-séng)
Flerovium(bìng-gĭng-sṳ̆k)
Moscovium(mâ̤ hiēu dĕk-séng)
Livermorium(mâ̤ hiēu dĕk-séng)
Tennessine(mâ̤ hiēu dĕk-séng)
Oganesson(mâ̤ hiēu dĕk-séng)


Europi

Americi
SamariEuropiGadolini
ngôi-guăng
silvery white, with a pale yellow tint;[1] but rarely seen without oxide discoloration
gái-huóng
miàng-cê·hù-hô̤·sê̤ṳ-só Europi (europium)·Eu·63
nguòng-só lôi-biék lanthanum-hiê
cŭk·ciŭ-gĭ·kṳ̆ n/a·6·f
nguòng-cṳ̄-liông 151.964(1)
diêng-cṳ̄ bà̤-buó [Xe] 4f7 6s2
2, 8, 18, 25, 8, 2
Lĭk-sṳ̄
ŭk-lī séng-cék
ŭk-tái gó-tā̤
mĭk-dô̤ (ciék-gê̤ṳng sék-ŭng)
5.264 g·cm−3
iòng-diēng sèng-âu gì ĭk-tā̤ mĭk-dô̤ 5.13 g·cm−3
iòng-diēng 1099 K,826 °C,1519 °F
bé-diēng 1802 K,1529 °C,2784 °F
iòng iĕk 9.21 kJ·mol−1
ké-huá iĕk 176 kJ·mol−1
bī-iĕk-ṳ̀ng 27.66 J·mol−1·K−1

cĭng-ké-ák

ák/Pa 1 10 100 1 k 10 k 100 k
ŭng/K 863 957 1072 1234 1452 1796
nguòng-cṳ̄ séng-cék
iōng-huá-tái 3, 2, 1
((a mildly basic oxide))
diêng-hô-séng 1.2 (Pauling biĕu-dô)
diêng-liê-nèng

dâ̤ 1: {{{1st ionization energy}}} kJ·mol−1
dâ̤ 2: {{{2nd ionization energy}}} kJ·mol−1

dâ̤ 3: {{{3rd ionization energy}}} kJ·mol−1
nguòng-cṳ̄ buáng-géng 180 pm
gê̤ṳng-gá buáng-géng 198±6 pm
gì-tă
cĭng-tā̤ giék-gáiu

body-centered cubic

Cṳ̀-sê̤ṳ paramagnetic
diêng-cū-lŭk poly: 0.900 µΩ·m
iĕk-dô̤-lŭk est. 13.9 W·m−1·K−1
pàng-dióng hiê-só poly: 35.0 µm/(m·K)
Young muò-liông 18.2 GPa
cēng-ciék muò-liông 7.9 GPa
tā̤-cék muò-liông 8.3 GPa
Poisson bī 0.152
Vickers ngâing-dô 165–200 MPa
CAS hô̤ 7440-53-1
có̤i ūng-diâng gì dùng-ôi-só


dùng-ôi-só hŭng-dô buáng-sŏi-gĭ huŏng-sék nèng-liôngMeV sāng-ŭk
150Eu syn 36.9 y ε 2.261 150Sm
151Eu 47.8% 5×1018 y α 1.9644 147Pm
152Eu syn 13.54 y ε 1.874 152Sm
β 1.819 152Gd
153Eu 52.2% (α) 0.2736 149Pm
154Eu syn 8.59 y β 1.969 154Gd
155Eu syn 4.76 y β 0.253 155Gd
Decay modes in parentheses are predicted, but have not yet been observed

Europium sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só. Nguòng-cṳ̄ sê̤ṳ-só sê 63, huá-hŏk hù-hô̤ sê Eu.

Huá-hŏk séng-cék

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Éng-ê̤ṳng

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Cié-chṳ̄

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Chăng-kō̤ cṳ̆-lâiu

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  1. Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4.