astatine

astatine

美 ['æst?ti:n] 　英 ['æst?ti:n]

• n.砹（放射性化學元素）
• 網絡石厄；石艾

英漢雙解

英漢解釋

n.

1. 【化】砹

英英解釋

n.	1. an unstable radioactive element, the heaviest in the halogen series.

例句

A halogen is defined as an element in group VII of periodic table, including Fluorine, Chlorine, Bromine, Iodine, Astatine.

鹵素是化學元素周期表中第七族的元素，包括了氟、氯、溴、碘、砹。

Astatine is a radioelement, so in general, halogen is defined as Fluorine, Chlorine, Bromine, Iodine.

砹是放射性元素，所以一般鹵素質的只是氟、氯、溴、碘。

On Earth rarest element astatine. Had discovered the naturalastatine element only has about 25 grams.

地球上最稀有的元素砹。已發現的天然砹元素只有25克左右。