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Radium
Radium is a chemical element with the atomic number 88 and the symbol Ra. It was discovered by Marie Curie and Pierre Curie in 1898 in uranium ore.
404 Questions
Who was responsible for the radium?
The responsibility for the radium dial painters' deaths and illnesses is primarily attributed to the companies that employed them, such as the US Radium Corporation and the Radium Dial Company. These companies were aware of the dangers of radium but failed to properly protect their workers or inform them of the risks.
How many veilance electrons does radium have?
Radium is a group 2 element. All group 2 elements have 2 valence electrons. Thus, radium has 2 valence electrons.
What type of radiation does radium emit?
(Exracted from the wikipedia page] A flame is the product of a highly exothermic reaction (for example, combustion, a self-sustaining oxidation reaction). In other words, it is the visible (light-emitting) part of a fire. Physically, a flame is made up of glowing gases and airborne particles given off by a burning substance; it is not just energy.
Yes, radium is extremely radioactive. The ionizing radiation produced by radium was used in x-ray generators within clinical settings a while back. It was so dangerous to handle and the waste was so expensive to take care of that medical industries switched to iridium. Nevertheless, anything/everything can kill someone when ingested/absorbed in excessive amounts. Too much water, salt, sunlight...you get the point
What new element is formed when radium decays?
The neutrons aren't really relevant, since we don't know what the mass of the radium nucleus was and the element is determined strictly by the number of protons anyway. Radium has an atomic number of 88; losing 4 protons would make the atomic number 84, which is polonium. (This is probably really a two-step process: radium -> radon -> polonium, where each step is an alpha decay.)
What household items contain radium?
Old luminous watches and clocks, certain types of antique glassware, and some old paint products may contain radium. These items were commonly used before the harmful effects of radium were fully understood.
Why do the elements such as radium polonium and uranium expose photographic film?
These elements emit ionizing radiation, such as alpha particles, which can interact with the photographic film, causing changes in its chemical composition. This interaction leads to the film being exposed and creating an image.
Is radium a source of nuclear energy?
Yes, radium is a radioactive element that can emit radiation and is used in some types of nuclear reactions to produce energy. It is not commonly used in nuclear power plants but has been used historically in early experiments to explore nuclear reactions.
What element does radium become once it has decayed?
Radium undergoes radioactive decay, specifically alpha decay, to become radon. Radium-226 (226Ra) will undergo alpha decay releasing that alpha particle, which is a helium-4 nucleus, to become radon-222 (222Rn).
When was pitchblende discovered?
While there is no exact date, it has been a known mineral since at least the 15th century.
What is the use of radium in Rutherford experiment in the lead box?
Radium was used in Rutherford's experiment to act as a source of alpha particles. The lead box was used to shield the experiment from external sources of radiation interference, allowing for more accurate measurements of the alpha particles' behavior.
How does radium alleviate suffering?
Radium can help alleviate suffering by being used in radiation therapy to treat cancer. By targeting and destroying cancer cells, radiation therapy can help reduce pain and symptoms associated with the disease, improve quality of life, and potentially cure the cancer.
Radium chloride is a compound made of radium and chlorine. It is a radioactive substance known for its luminescent properties. Due to its high radioactivity, it is used in scientific research and medical applications, but must be handled with extreme caution.
How long did it take Marie curie to discover radium and polonium?
Marie Curie, along with her husband Pierre Curie, discovered radium and polonium in 1898. It took them several years of dedicated research and experiments to isolate and characterize these new elements.
What are the coordinates of Radium Springs - Georgia?
Coordinates of Radium Springs (Georgia) are:
31°31′35″, North
84°08′08″, West
Why radium is not used instead of uranium?
Actually uranium-238 is used in nuclear reactor, in fact in ordinary water moderated nuclear reactors 97% of the uranium in the fuel is uranium-238. Even in fast neutron (i.e. unmoderated) nuclear reactors 5% or more of the fuel is uranium-238. However, this uranium-238 in the fuel cannot be fissioned directly by the reactor, but some of it is transmuted to plutonium-239, plutonium-240, plutonium -241, and plutonium-242 which do burn. The problem with uranium-238 in the fuel is just that, it captures neutrons then over a period of several days transmutes to plutonium via radioactive decay and this loss of neutrons stops the neutron chain reaction that maintains fission; to minimize this effect some uranium-238 is removed from the fuel by enrichment and most nuclear reactors also use a moderator of some kind to rapidly slow neutrons (uranium-238 captures intermediate speed neutrons about 100 to 700 times more easily than it does either fast or slow neutrons) to thermal (21C or 2.2km/s or 0.025eV) speeds, at which uranium-235 fissions 213 times more easily than uranium-238 captures neutrons.
Also reactors have been built that used uranium-238 as part of their shielding, as being denser than lead it is an excellent absorber of gamma and x-ray radiation.
After undergoing alpha decay an atom of radium -226 becomes?
Radium 226 decays by alpha emission to Radon 222. A helium nucleus is emitted by alpha emission which makes the mass reduce by 4 and its atomic number by 2.
In what family would you classify radium?
Radium is a member of the alkaline earth metals group (group 2).
What is the mass number of the radium isotope used in paint?
The atomic mass of the radium isotope 226Ra is 226,025 409 8(25).
Did madame Curie organize x ray services with radium?
Radium was used in the past for the treatment of some cancers and Marie Curie was a pioneer in this field. But radium don't emit x-rays; radium is a emitter of gamma, alpha and beta rays. The gamma radiation can destroy malign tumors.
What is the chemical composition of radium?
On the average, throughout the world, one part of radon is present to 1 x 1021 part of air. At room temperatures radon is a colorless/odorless gas but when radon is cooled below the freezing point, radon exhibits a brilliant luminescence which turns yellow as the temperature decreases and orange-redish at the equivalent temperature of liquid air. Radon is an inert gas therefore it is a noble gas but research has shown that radon does react with fluorine, forming a fluoride. Radon is also the heaviest known gas and although radon is usually found in rock beds it has been found in some water springs.
- Radon does not react with air
- Radon does not react with water although it does dissolve slightly to the extent of about 230 cm3 kg-1 at 20°C (293 K)
- Radon gas doesn't react with any halogens except fluorine. Radon gas reacts with fluorine to form the difluoride radon(II) fluoride, RnF2, but the compound cannot be characterized.
- Radon does not react with any acids or bases
- 7 isotopes
- atomic number 86
What is least reactive calcium magnesium radium strontium and barium?
Radium is the least reactive among calcium, magnesium, strontium, and barium. Radium is a highly radioactive metal that readily reacts with other elements, but it is less reactive compared to the other listed elements.
Extremely expensive; radium is not a common commercial product. Radium can be delivered only to specialized research institutes.
