Assertion: astatine | /r/HasProperty | radioactive
Facets:
value: highly
type: DEGREE
value: with the symbol
type: OTHER
value: from the greek astatos
type: LOCATION
value: at atomic number
type: OTHER
value: with an atomic number of 85
type: OTHER
value: like the other halogens
type: OTHER
value: with very short half-lives
type: OTHER
value: with a symbol of at
type: OTHER
value: intensely
type: DEGREE
Source sentences:
text: Astatine is highly radioactive yet poses nearly no health or environmental effects at all due to its rarity and very short half-lives, according to Lenntech.
text: Astatine is a radioactive chemical element with the symbol
text: Astatine is a highly radioactive element and the heaviest member of halogen family.
text: It is unlikely that anyone would actually do this as astatine is a radioactive solid and therefore dangerous
text: Astatine is a radioactive halide (non-metal), not enough of it exists to determine its physical characteristics.
text: Astatine is a radioactive halogen (the heaviest of the halogen elements) and is a solid at room temperature.
text: Astatine and tennessine are radioactive elements with very short half-lives and thus do not occur naturally.
text: It is radioactive and extremely unstable, with a half-life of around eight hours.
text: Since astatine is radioactive, it should be handled carefully.
text: Astatine is highly radioactive and is only available in tiny quantities.
text: Isolation: astatine is radioactive and essentially unavailable in nature.
text: Astatine is highly radioactive and like the other halogens would be expected to form salts with metals such as sodium.
text: Astatine is highly radioactive.
text: Astatine is very radioactive and thus highly dangerous, but it has not been produced in macroscopic quantities and hence it is most unlikely that its toxicity will be of much relevance to the average individual.
text: Since astatine is extremely radioactive, it should be handled with extreme care.
text: Those formed with astatine have a very short half-life due to astatine being intensely radioactive.
text: It is a chemical that is radioactive with a symbol of At and an atomic number of 85.
text: Astatine usually appears as a decay product of other elements but because it is highly radioactive, it vaporizes instantaneously.
text: Astatine is a chemical element that has no stable isotopes (it is radioactive).
text: Astatine is the rarest element on Earth, and it is also highly unstable and radioactive.
text: Astatine, which has 85 protons and 85 electrons per atom, is radioactive, and half of its most stable version decays in just 8.1 hours, a time called half-life.
text: Although astatine is radioactive and only has short-lived isotopes, it behaves similar to iodine and is often included in the halogen group.
text: Astatine: Because astatine is radioactive and rare, there are no proven uses for this halogen element.
text: The background is the radioactive symbol as astatine is radioactive.
text: Iodine is a solid whereas Astatine is radioactive and is one of the rarest of the chemical element!
text: Astatine is radioactive and is one of the rarest of the chemical elements.
text: Astatine, which has 85 protons and 85 electrons per atom, is radioactive, and half of its most stable version decays in just 8.1 hours, a time called half-life.
text: It is radioactive and its name, from the Greek astatos, means "unstable".
text: Promethium, polonium, astatine and radon are radioactive, and therefore present radioactive hazards.
text: Astatine is a radioactive chemical element with the chemical symbol
text: Astatine is a radioactive chemical element wi the chemical seembol
text: Astatine is a radioactive chemical element with the symbol
text: Astatine is a radioactive chemical element with symbol
text: Astatine is a radioactive chemical element wi the chemical seembol
text: Astatine is a radioactive chemical element with the chemical symbol
text: Astatine is a radioactive chemical element with the symbol
text: Astatine is a radioactive chemical element with the symbol
text: Astatine is a radioactive chemical element.
text: Astatine is a radioactive chemical element with the chemical symbol
text: Astatine is a highly radioactive element: its most stable isotope, astatine-210, has a half-life of 8.1 hours...
text: As astatine is a radioactive element produced only in the laboratory whenever required, it cannot be commercially availed.
text: Astatine is a radioactive element.
text: Astatine is a radioactive element with symbol At and atomic number 85.
text: As astatine is a radioactive element, the compounds of it are not ususally discussed.
text: Astatine is a radioactive element.
text: Astatine is an extremely radioactive element; all its isotopes have half-lives of 8.1 hours or less, decaying into other astatine isotopes, bismuth, polonium, or radon.
text: Astatine is an extremely radioactive element.
text: Astatine is an extremely radioactive element; all its isotopes have short half-lives of 8.1 hours or less, decaying into other astatine isotopes, bismuth, polonium or radon.
text: It is unlikely that anyone would actually do this as astatine is a radioactive solid and therefore dangerous