Is Astatine At element 85 a metalloid?


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2014-05-30 17:32:04
2014-05-30 17:32:04

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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The element with the atomic number 85 is Astatine (At). Astatine is a Radioactive Halogen in Group 17(7) of the Periodic Table. Astatine has 85 electrons in 6 shells with 7 electrons in the outer shell. Astatine is the third radioactive element on the Periodic Table.

The element with atomic number 85 is astatine, symbol At

At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons

Aluminum is not a metalloid. Usually, polonium and astatine are not considered metalloids either.

the last member of halogens family the Astatine has 85 protons.

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

The electron configuration for astatine is Xe 4f14 5d10 6s2 6p5. Astatine is the element that has the atomic number of 85 on the periodic table. This element is a halogen.

Astatine falls along the Metalloid zigzag but is not a metalloid. It is an element similar to iodine

Astatine is an element in the periodic table, belonging to group 7.It has an atomic number of 85.

Astatine is not a metalloid but a nonmetal; astatine is a solid because is more heavier than fluorine.

Astatine is the largest metalloid on the periodic table. This metalloid has an atomic number of 85. Its molar mass is 210 gram per mol.

Astatine is a nonmetal and halogen.

Astatine is actually a metalloid. Therefore, it doesn't rust.

The element with atomic number 85 in the Periodic Table is Astatine (At). Astatine is the second radioactive element, but is not synthesised. It is part of the Group 17 - Halogens family. It has 85 electrons in 6 shells with 7 electrons in the outer shell.

Astatine is a chemical element with the symbol As and atomic number of 85. It has an atomic radius of 145 Angstrom.

The element with the symbol At is Astatine. Astatine is a Group 17(7) Halogen and is radioactive. It has 85 electrons in 6 shells, with 7 electrons in the outer shell.

My science teacher says that Astatine is a nonmetal.

The metalloid with 7 valence electrons would be astatine.

Astatine: Number 85, however I dont know why it was named that. :(

The element in the Periodic Table that has 85 protons is Astatine. This element is in the Halogen Family (Group 17 in the Table). This group includes the elements Fluorine, Chlorine, Bromine, and Iodine.

Astatine is a halogen, which is a Group 17 element.

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

The number of electrons in an atom of Astatine is 85.

No it is not a metalloid.

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