Chemistry

Is astatine a metal metalloid or non metal?

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2009-10-07 23:15:56
2009-10-07 23:15:56

My science teacher says that Astatine is a nonmetal.

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No, the guy before me was wrong, Astatine is a Metalloid and it is used in the Radiotherapy of cancer.


Astatine is a nonmetal and halogen.


Astatine is a solid nonmetal.



It is a metalloid. It is in the p block.



It is usually considered a metalloid, but also sometimes considered a halogen or just a plain ol' metal.


Astatine is a radioactive halide (non-metal), not enough of it exists to determine its physical characteristics.


Astatine, with the symbol At and the atomic number 85, is usually classified at a metalloid, but this is in dispute. It is sometimes classified as a halogen, and possibly a metal. It is still being studied.






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Antimony is a metalloid because it has qualities of a metal and non-metal


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Chlorine is not a metalloid. It is a non metal.


The element selenium is a non-metal.





Silicon is a metalloid, which is a mix between metal and a non-metal.


Graphite is an allotrope of carbon and is a non-metal.



Propane is a hydrocarbon and a gas. It is a non-metal.



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