Assertion: polonium | /r/HasProperty | radioactive
Facets:
value: highly
type: DEGREE
value: incredibly
type: DEGREE
value: so intensely
type: DEGREE
value: as a power source for satellites
type: PURPOSE
Source sentences:
text: Polonium needs to be replaced in these devices nearly every year because of its short half-life; it is also highly radioactive and therefore has been mostly replaced by less dangerous beta particle sources.
text: Polonium is a highly radioactive element.
text: Polonium is a highly radioactive and toxic element and is dangerous to handle.
text: Polonium is a highly radioactive heavy metal.
text: Polonium is a radioactive chemical element (atomic number 84) that was discovered in 1898 by Marie Curie, who named the element after her country, Poland.
text: The substance was polonium, a highly radioactive isotope.
text: Polonium is a radioactive metallic element, occurring naturally in small quantities as a product of radium disintegration and produced synthetically by bombarding bismuth or lead with neutrons.
text: Because polonium is highly radioactive—it disintegrates to a stable isotope of lead by emitting alpha rays, which are streams of positively charged particles
text: It is highly radioactive and has a short half-life, so its natural abundance is very limited and is present in trace amounts.
text: Polonium is highly radioactive, and all its isotopes are highly unstable and radioacitve.
text: But it is radioactive; long-lived polonium isotopes decay by alpha emission causing an effect known as sputtering.
text: Polonium needs to be replaced in these devices nearly every year because of its short half-life; it is also highly radioactive and therefore has been mostly replaced by less dangerous beta particle sources.
text: It is radioactive because it emits alpha particles (helium ions).
text: Polonium is highly unstable, radioactive and toxic.
text: Polonium is highly unstable, radioactive and toxic.
text: It is radioactive because it emits alpha particles (helium ions).
text: Polonium is extremely toxic and highly radioactive.
text: It is radioactive because it emits alpha particles (helium ions).
text: Polonium is very toxic and radioactive; polonium can be lethal.
text: It is radioactive because it emits alpha particles (helium ions).
text: It is extremely toxic and highly radioactive.
text: Polonium needs to be replaced in these devices nearly every year because of its short half-life; it is also highly radioactive and therefore has been mostly replaced by less dangerous beta particle sources.
text: Polonium is so radioactive
text: Polonium is highly radioactive and is considered to be highly dangerous to humans.
text: Polonium is highly unstable, radioactive and toxic.
text: It is so toxic and radioactive that exposure to very small amounts can be fatal.
text: Although it used to be used as a neutron source, as a source of heat to keep delicate electronic components warm, and as a power source for satellites (polonium is so intensely radioactive that a 1-gram source will heat itself up to over 500˚ C, producing up to 140 watts of energy in a radioisotopic thermal generator, or RTG).
text: As polonium is a highly radioactive element (its most commonly used isotope, 210Po, has a half-life of about 138 days), organopolonium chemistry is mostly unexplored, and what is known is mostly confined to tracer-level studies due to self-destruction and charring of the compounds by the energetic alpha decay of polonium.
text: Polonium is a radioactive element that exists in two metallic allotropes.
text: Polonium is a radioactive element that occurs naturally in the environment at very low levels or can be produced in a nuclear reactor.
text: Polonium is a radioactive element that exists in two metallic allotropes.
text: Polonium is a radioactive element that occurs naturally in tiny amounts (which are harmless to us).
text: Other sources of beta particles are used today because polonium is a radioactive element.
text: Polonium is a radioactive element that occurs naturally in tiny amounts (which are harmless to us).
text: Polonium is a radioactive element that occurs naturally in tiny amounts (which are harmless to us).
text: Polonium is a radioactive element that occurs naturally in tiny amounts (which are harmless to us).
text: Polonium is a radioactive element discovered in 1898 by scientists Marie and Pierre Curie and named for Marie’s native country, Poland.
text: Polonium is a radioactive element that occurs naturally in tiny amounts (which are harmless to us).
text: • Polonium is a radioactive element that occurs naturally in very low concentrations in the earth’s crust.
text: It is a radioactive element that occurs naturally in the earth's crust.
text: Polonium is a radioactive element that exists in two metallic allotropes.
text: Polonium is a radioactive element.
text: Polonium is a radioactive element that is used industrially as an anti-static material.
text: Polonium is a radioactive element that occurs naturally in tiny amounts (which are harmless to us).
text: It’s quickly converted to polonium, another radioactive element, which can attach to dust particles before being deposited in lungs.
text: Polonium, being a highly radioactive and toxic element, needs to be handled very carefully with special equipment, as even milligram or microgram amounts are very dangerous.
text: Polonium is a highly radioactive and toxic element and is very difficult to handle.
text: Polonium, Element 84, is an incredibly radioactive and toxic element.
text: Polonium is a highly radioactive heavy metal.
text: Polonium is a highly radioactive heavy metal.
text: Marie Curie discovered Polonium, a radioactive chemical element (atomic number 84) in 1898.