Actinium, 89 Ac ngoi-kôn
silvery-white, glowing with an eerie blue light;[ 1] sometimes with a golden cast[ 2] Kî-pún sin-sit Miàng, fù-ho
actinium, Ac ngoi-hìn
silvery-white, glowing with an eerie blue light;[ 1] sometimes with a golden cast[ 2] Actinium chhai chû-khì-péu ke vi-chi
ngièn-chṳ́ sì-sú
89 ngièn-chṳ́-liòng
(227) ngièn-su lui-phe̍t
actinium-hi , sometimes considered a transition metal Chhu̍k , fûn-khî
n/a , f-block chû-khì
period 7 thien-chṳ́ phài-lie̍t
[Rn ] 6d1 7s2 per shell
2, 8, 18, 32, 18, 9, 2 vu̍t-lî sin-chṳt Siông
ku-thí yùng-tiám
1500 K (1227 °C, 2240 °F) (estimated) [ 2] pui-tiám
3500±300 K (3200±300 °C, 5800±500 °F) (extrapolated) [ 2] Me̍t-thu near Sit-vûn
10 g·cm−3 Yùng-fa-ngie̍t
14 kJ·mol−1 Chîn-fat-ngie̍t
400 kJ·mol−1 Ngie̍t-yùng-liong
27.2 J·mol−1 ·K−1 Ngièn-chṳ́ sin-chṳt Yông-fa-su
3 , 2 (a neutral oxide) Thien-fu-sin
Pauling scale: 1.1 Thien-lì-nèn
1st: 499 kJ·mol−1 2nd: 1170 kJ·mol−1 Khiung-ka pan-kang
215 pm Miscellanea Chîn-thí keu-chho
face-centered cubic (fcc) Ngie̍t-chhòn-thô-li̍t
12 W·m−1 ·K−1 CAS Registry Number
7440-34-8 Le̍k-sú Hoat-kiàn kap siōng chá ê tông-ūi-sò͘
Friedrich Oskar Giesel (1902) Chui vún-thin ke thùng-vi-su
Chú vùn-chông: actinium ke thùng-vi-su
Actinium (Hon-ngî : 錒 ā ) he yit-chúng fa-ho̍k ngièn-su , fa-ho̍k fù-ho vì Ac , ngièn-chṳ́ su-muk he 89 .
Chhâm-kháu chṳ̂-liau