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It is a period of time when the radio active mass is halved.
Radioactive metals disintegrate. In this disintegration the radio active atom emits either/or alpha/beta/gamma particles, and in doing so the given elements changed to a less massive element.
Taking uranium for example.
The isotope 234-U decays with beta emission to the isotopic element 234-Protactinium.in a period of 24 days.
So if you had say 10g of 234-U in 24 days you would have 5g of 234-U . The other 5g would be the element 234-Protactinoum.
lenpollock
Wiki User
∙ 9y agoThe half life of a radioisotope is the time taken for half the atoms to undergo radioactive decay or the amount of time required for a radioisotope to decay to half its original mass.
chickenfingers
Wiki User
∙ 16y agofrancium 223 is the most durable of all forms of francium ewith a half life of 22 minutes
Wiki User
∙ 14y agoThe most stable isotope of francium, 223Fr, has a half life of 21,8 minutes; for the other isotopes see the link.
Wiki User
∙ 11y agoIt is the time it takes for the radioisotope mass to reduce by half because of its radioactive disintegration.
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Has a Francium bomb ever been made?
Possibly, though francium is too rare and its half-life too short for it to have any practical uses, there may have been a Francium Bomb tested in the Pacific.
Why isn't there a lot of evidence for the properties of francium?
Because Francium is so highly radioactive, it disintegrates before it can be collected. The half-life of the least stable isotope of Francium, Francium-215, is a mere 86 nanoseconds. The half-life of the most stable isotope of Francium, Francium-223, is still only 22 minutes. Scientists cannot gather Francium from nature due to the fact that even if they do come across some, it will soon disintegrate into other elements like barium. If scientists want to study Francium, they must make Francium atoms in a laboratory.
Whats the most reactive substance?
Quite possibly francium (Fr, atomic number 87) is the most reactive element. Collecting a sample large enough to view is currently impossible, as it would vaporize due to the extreme heat of its decay. The longest isotopic half life of francium is 22 minutes.
What is the cost for 10g of francium?
Francium can form cations with the charge +1.
What are some things that contains francium?
Francium is a true chemical element, not an example.
Where is francium stored in the laboratory?
I suppose that francium cannot be stored: the half life is short.
Why is francium not stored in laboratories?
I suppose that francium cannot be stored: the half life is short.
Why is francuim rare?
Francium is rare because if its incredibly short half-life. The longest-lived isotope of francium has a half-life of 22 minutes. This means that if you have a given mass of francium, half of it will have decayed into something else after a 22 minute period. Francium is itself a product of Radioactive decay, however it decays so quickly after forming that there is never a large amount of it.
Which nuclide has a half-life that is less than one minute?
Francium-220
Why was francium hard to discover?
because it only has a half life of 22 minutes so by the time any one could get to it the francium had died
Why are you unable to buy fluorine or francium in the store?
well i don't know about fluorine, but francium only has a half life of only 22 minutes, witch means in 22 minutes half of it will already be gone, so that's why you can't buy francium.
Has a Francium bomb ever been made?
Possibly, though francium is too rare and its half-life too short for it to have any practical uses, there may have been a Francium Bomb tested in the Pacific.
How many minute will it take for 1gram of francium isotope to decay to 0.125gram?
Each isotope has another half life.For the isotope francium-223 (half life = 21,8 minutes) the time is 87,2 minutes.
Is francium used in radioactive lasers?
Francium has an extremely short half life of about 20 minutes so no it is not. Radioactive lasers do not use radioactive materials anyway.
Does francium burn?
It would burn if it were ever possible to collect enough to test. This cannot be done, however, because of Francium's extremely short half-life.
How easy is it to cut francium?
Francium is extremely unstable. The most stable isotope of francium has a half-life of only about 22 minutes. Other isotopes of francium have half-lives measured in microseconds. Scientists predict there is less than one ounce of francium in Earth's crust at any one time. Because of this instablilty, it would be much easier to go get a cup of coffee and wait for francium to cut itself apart.
Why is francium uncommon?
- The total quantity of francium in the earth crust is approx. 30 g. - The most stable isotope of francium, 223Fr, has a half life of only 21,8 min. - Obtaining francium artificially by the intermediate of nuclear reactions, is also very difficult and expensive.
