Astatine is produced by nuclear reactions.
Astatine is similar to the halogen family
Group seven is known as the halogen group. The least reactive element in group seven is astatine. Fluorine is the most reactive.
Astatine, with a molecular weight of 210 amu.
This element is selenium.
The periodic table is designed so elements in the vertical columns (groups) have the most similarities in chemical and physical properties. So, Iodine is most similar to the other non-metals in the Halogen family, such as Fluorine, Chlorine, Bromine, and Astatine.
Astatine is similar to the halogen family
Astatine is the rarest naturally occurring element touted to be approximated 30gm in whole of earth. This is due to its short half life of 8.3hrs. It can be prepared by bombarding alpha particles onto bismuth. It is a halogen and hence has been thought to be similar to iodine but more metallic.
no, it is most commonly found as a compound
Astatine. the entire planet contains only about 17 atoms of it
Group seven is known as the halogen group. The least reactive element in group seven is astatine. Fluorine is the most reactive.
Astatine, with a molecular weight of 210 amu.
Astatine is the rarest naturally occuring element on Earth because all its isotopes are radioactive with very short half-lives. The most stable, At-210 has a half-life of 8 hours, so any astatine that forms (by radioactive decay of heavier elements) quickly decays to other elements.
The element that would have properties most similar to the new element would be an element that lies in the same group as the new element. Specifically, the element with the most similar properties will lie directly above or below that element in the group.
astatine(less than 25g of it is present on earth acc. to guiness world records)
This element is selenium.
I consider that this similar element doesn't exist.
It is diatomic. Being radioactive, and its most stable isotope having a half life of 8.3 hours, it is usually not considered.