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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.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoYes, it is.
All isotopes of astatine are radioactive. Only traces of a single isotope are found in nature.
Wiki User
∙ 14y agoMy science teacher says that Astatine is a nonmetal.
Wiki User
∙ 14y agoNo it is a halogen.
Wiki User
∙ 14y agoAstatine is a solid nonmetal.
Wiki User
∙ 11y agoit's a non-metal, is what wikepedia says
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Ia astatine a metal metalloid or a nonmetal?
Astatine is a nonmetal and halogen.
Which 2 elements along the stair step line are not metalloids?
Polonium and astatine may or may not be included as metalloids (depends on your periodic table). Overall, polonium is closer to being metal than a metalloid; astatine closer to being non-metal than metalloid
Barium metal or metalloid?
According to Lange, Semi-metals are: boron, silicon, germanium, arsenic, antimony, tellurium, polonium and astatine. Although, polonium and astatine, according to some authors, are not semi-metals. Gallium is a metal (4. period, 13th (IIIa) group).
When was astatine found?
In 1940, astatine was produced in a lab at the University of California by the three scientists named Carson, Mackenzie, and Segre. This element is classified as a semi-metal and has the atomic number of 85.
Is sand a non metal or metal?
non metal
Is astatine a good conductor of electricity?
Astatine is not a good conductor of electricity. This is because it is a non-metal. All non-metals do not conduct electricity, and all metals do. The two exceptions are carbon and silicon, which are non-metals, but conduct electricity well.
Is it true that astatine is a non-metal?
Yes. A solid nonmetal of the halogen family.
Ia astatine a metal metalloid or a nonmetal?
Astatine is a nonmetal and halogen.
What element is a metal and a non metal?
These types of elements are called metalloids. There are a few: Boron, Silicon, Arsenic, Germanium, Antimony, Tellurium, and Astatine. Hope that's what you were looking for!
Which 2 elements along the stair step line are not metalloids?
Polonium and astatine may or may not be included as metalloids (depends on your periodic table). Overall, polonium is closer to being metal than a metalloid; astatine closer to being non-metal than metalloid
What is the radioactive metal used in medicine?
Astatine (At)
Is astatine a metal nonmetal or metalloid?
No, the guy before me was wrong, Astatine is a Metalloid and it is used in the Radiotherapy of cancer.
Is boron a non-metal?
No, Boron (B) is classified as a metalloid, which is an element with propertyies intermediate between metals and nonmetals. Other metalloids are: Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium and Astatine.
Why is Astatine not a diatomic element?
It is diatomic. Being radioactive, and its most stable isotope having a half life of 8.3 hours, it is usually not considered.
Is astatine similar to strontium in chemical properties?
Astatine is a heavy halogen; no similarities with strontium (alkaline earth metal).
Is astatine an alkaline metal?
No. Astatine is a halogen. The alkaline earth metals are in the column second from the left of the periodic table.
Which is most electronegative metal?
Gold, electronegativity: 2.4
