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词汇
astatine
释义
astatine
noun
[
U
]
uk
/
ˈæs.tə.tiːn
/
us
/
ˈæs.tə.tiːn
/
(
symbol
At
)
砹
(地球表面最为稀少的一种放射性化学元素)
a chemical element that is
radioactive
and is the rarest natural element on the Earth's surface
The properties of astatine remain a mystery.
砹的属性仍然不为人知。
更多例句
The lowest element in this group is also a highly radioactive and rare element, astatine.
Fluorine and astatine are halogens.
What is the physical state of astatine at room temperature?
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更新时间:2025/10/10 14:32:00