'Ryan'+Astatine,+part+two

atomic number 85 mass number 210 __ ** What I knew about astatine: · Rarest natural occurring element on earth, with about 25 grams in total contained in the Earth · Only radioactive halogen currently discovered/made · Group 7 element (considering this, astatine would be an even darker colour purple that iodine, almost black, is also expected to form diatomic molecules) · Some astatine is found in microchips What I have found out through research · Radioactive decay (the process which elements lose nucleons to become more stable) causes most Astatine atoms to form isotopes [same number of protons and electrons, but different number of neutrons] of lead · The reason why Astatine exists in such small quantities naturally is because of its short half life · Astatine could potentially be used to treat tumors, but is currently too rare. · Similar in nature to iodine, so it accumulates in the thyroid gland · Naturally occurring astatine is caused when isotopes of uranium decay · Astatine was discovered in University of California, Berkeley, USA by Dale Corson, K. R. MacKenzie, and Emilio Segre in 1940#**.** · Termed “eka-iodine” prior to its discovery, Mendeleev predicted that astatine would behave like iodine in many ways, such as occurring as a solid in room temperature, sublimes into a dark purple vapour, accumulate in the thyroid gland and potentially can treat tumors, however, since it is too rare for proper usage, iodine is used instead some known compounds of astatine
 * __ Astatine

Sodium astatide (NaAt)#
===Hydrogen astatide(HAt) no, it is not a hat, instead it is a strong acid, one of the hydrohalic acids, these are compounds of the group 7 elements and hydrogen. Similarly, it can be called hydroastatic acid, like hydrogen chloride, or hydrochloric acid. [And no, i got this from a book not wikipedia]===

Online sources: Wikipedia highlighted with [#] offline sources: mostly books, considering that i did not have internet connection when i did the first draft