Plutonium

Plutonium,  ₉₄Pu

ngoi-kôn
silvery white, tarnishing to dark gray in air
Kî-pún sin-sit
Miàng, fù-ho	Plutonium, Pu
ngoi-hìn	silvery white, tarnishing to dark gray in air
Plutonium chhai chû-khì-péu ke vi-chi
Sm ↑ Pu ↓ (Uqh) neptunium ← Plutonium → americium
ngièn-chṳ́ sì-sú	94
ngièn-chṳ́-liòng	(244)
ngièn-su lui-phe̍t	actinium-hi
Chhu̍k, fûn-khî	n/a, f-block
chû-khì	period 7
thien-chṳ́ phài-lie̍t	[Rn] 5f6 7s2
per shell	2, 8, 18, 32, 24, 8, 2
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	912.5 K ​(639.4 °C, ​1182.9 °F)
pui-tiám	3505 K ​(3228 °C, ​5842 °F)
Me̍t-thu near Sit-vûn	19.816 g·cm−3
16.63 g·cm−3
Yùng-fa-ngie̍t	2.82 kJ·mol−1
Chîn-fat-ngie̍t	333.5 kJ·mol−1
Ngie̍t-yùng-liong	35.5 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 1756 1953 2198 2511 2926 3499
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	8, 7, 6, 5, 4, 3, 2, 1 ​(an amphoteric oxide)
Thien-fu-sin	Pauling scale: 1.28
Thien-lì-nèn	1st: 584.7 kJ·mol−1
Ngièn-chṳ́ pan-kang	empirical: 159 pm
Khiung-ka pan-kang	187±1 pm
Miscellanea
Chîn-thí keu-chho	​monoclinic
Sâng-suk	2260 m·s−1
Ngie̍t-phàng-chong	46.7 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	6.74 W·m−1·K−1
Thien-chú-li̍t	1.460 µΩ·m (at 0 °C)
Chhṳ̀-sin	paramagnetic
Young's modulus	96 GPa
Shear modulus	43 GPa
Poisson ratio	0.21
CAS Registry Number	7440-07-5
Le̍k-sú
Hí-miàng	after dwarf planet Pluto, itself named after classical god of the underworld Pluto
Fat-hien	Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Plutonium ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 238Pu trace 87.74 y SF 204.66 – α 5.5 234U 239Pu trace 2.41×104 y SF 207.06 – α 5.157 235U 240Pu trace 6.5×103 y SF 205.66 – α 5.256 236U 241Pu syn 14 y β− 0.02078 241Am SF 210.83 – 242Pu syn 3.73×105 y SF 209.47 – α 4.984 238U 244Pu trace 8.08×107 y α 4.666 240U SF –

Plutonium (Hon-ngî: 鈽 bù fe̍t-chá 鈈 bù) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Pu, ngièn-chṳ́ su-muk he 94.