2/25/2023 0 Comments Astatos definition![]() ![]() His father recalled the sorcerer as a tall black haired man with cold grey eyes and a evil looking crow on his shoulder. ![]() When his mother argued that the new laws were unfair, the sorcerer killed her as an example of what would happen to those who opposed the new rule. When Astatos demanded to know more about his mother's killer, his father obliged out of fear the killer was an enforcer sent out to towns to ensure the rule of the new lord was followed. Astatos burned with rage at this revelation, and subdued his father with his augmented power. The man's slurred shouting revealed that Astatos' mother had been killed by a sorcerer who served the Lord Darken Rahl. When he was discovered practicing magic, Baldor went into a drunk rage, beating the boy severely hurting the boy. Fearing what reaction these newfound powers might provoke from his father, Astatos studied in secrecy. Magicks imbued themselves in the boy sporadically throughout his growing years. Baldor's frequent trade with merchants earned him an uncanny ability of persuasion that his son learned in turn. They traveled the land trading between towns earning a meager living and spending a majority of time assisting his father hunting. Whenever Astatos quired his father about his absent mother, his father simply grumbled and said she left a few years after he was born, and said no more. ![]() Astatos had only fleeting memories of his mother, faint memories of a face and a voice. Baldor was a somber man who spoke little and drank much. The longest-lived isotope is 210At, which has a half-life of 8.1 hours the shortest-lived known isotope is 213At, which has a half-life of 125 nanoseconds.Astatos grew up as the son of a woodsman named Baldor. There exist also 23 metastable excited states. These compounds are primarily of theoretical interest however, they are also being studied for potential use in nuclear medicine.Īstatine has 33 known isotopes, all of which are radioactive the range of their mass numbers is from 191 to 223. Multiple compounds of astatine have been synthesized in microscopic amounts and studied as intensively as possible before their inevitable radioactive disintegration. An earlier name for the element was alabamine (Ab).Īstatine is produced by bombarding bismuth with energetic alpha particles to obtain relatively long-lived 209At - 211At, which can then be distilled from the target by heating in the presence of air. MacKenzie, and Emilio Segrè at the University of California, Berkeley by barraging bismuth with alpha particles. Astatine (after Greek αστατος astatos, meaning "unsteady") was first synthesized in 1940 by Dale R. ![]() The existence of "eka-iodine" had been predicted by Mendeleev. The Guinness Book of Records has dubbed the element the rarest on Earth, stating: "Only around 0.9 oz (25 g) of the element astatine (At) occurring naturally" Isaac Asimov wrote a 1955 essay on large numbers, scientific notation, and the size of the atom, in which he stated that the number of astatine atoms on Earth at any time was "only a trillion". Researchers at the Brookhaven National Laboratory have performed experiments that have identified and measured elementary reactions that involve astatine however, chemical research into astatine is limited by its extreme rarity, which is a result of its extremely short half-life.Īstatine is the rarest naturally-occurring element, with the total amount in Earth's crust estimated to be less than 1 oz (28 g) at any given time this amounts to less than one teaspoon of the element. Astatine is thought to be more metallic than iodine. This highly radioactive element has been confirmed by mass spectrometers to behave chemically much like other halogens, especially iodine (it would probably accumulate in the thyroid gland like iodine). This radioactive element occurs naturally from uranium-235 and uranium-238 decay it is the heaviest of the halogens. Astatine ( IPA: /ˈastətiːn/) is a chemical element in the periodic table that has the symbol At and atomic number 85. ![]()
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