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[[Image:Thorium decay chain from lead-212 to lead-208.svg|thumb|The decay chain from lead-212 down to lead-208, showing the intermediate decay products.]]
 
In [[nuclear physics]], a '''decay product''' (also known as a '''daughter product''', '''daughter isotope''' or '''daughter nuclide''') is the remaining [[nuclide]] left over from [[radioactive decay]]. Radioactive decay often proceeds via a sequence of steps ([[decay chain]]). For example, U-238 decays to Th-234 which decays to Pa-234 which decays, and so on, to Pb-206 (which is stable):
 
<math>
\mbox{U-238} \rightarrow \overbrace{ \underbrace{\mbox{Th-234}}_{\mbox{daughter of U-238}}  \rightarrow \underbrace{\mbox{Pa-234m}}_{\mbox{granddaughter of U-238}} \rightarrow \ldots \rightarrow \mbox{Pb-206} }^{\begin{array}{c} \mbox{decay products of U-238} \end{array}}
</math>
 
In this example:
* Th-234, Pa-234m,…,Pb-206 are the decay products of U-238.
* Th-234 is the daughter of the parent U-238.
* Pa-234m (234 metastable) is the granddaughter of U-238.
These might also be referred to as the daughter products of U-238.<ref>
[http://www.gulflink.osd.mil/library/randrep/du/mr1018.7.gloss.html Glossary of Volume 7] (''Depleted Uranium'' — authors: Naomi H. Harley, Ernest C. Foulkes, Lee H. Hilborne, Arlene Hudson, and C. Ross Anthony) of ''A review of the scientific literature as it pertains to gulf war illnesses''.
</ref>
 
Decay products are important in understanding radioactive decay and the management of [[radioactive waste]].
 
For elements above [[lead]] in [[atomic number]], the decay chain typically ends with an [[isotope]] of lead.
 
In many cases members of the decay chain are far more radioactive than the original nuclide. Thus, although uranium is not dangerously radioactive when pure, some pieces of naturally-occurring [[Uraninite|pitchblende]] are quite dangerous owing to their [[radium]] content. Similarly, [[thorium]] [[gas mantle]]s are very slightly radioactive when new, but become far more radioactive after only a few months of storage.
 
Although it cannot be predicted whether any given atom of a radioactive substance will decay at any given time, the decay products of a radioactive substance are extremely predictable. Because of this, decay products are important to scientists in many fields who need to know the quantity or type of the parent product. Such studies are done to measure pollution levels (in and around nuclear facilities) and for other matters.
 
==References==
{{reflist}}
 
==See also==
* [[Decay chain]]
 
{{DEFAULTSORT:Decay Product}}
[[Category:Nuclear physics]]
[[Category:Nuclear chemistry]]

Latest revision as of 23:14, 13 December 2014

Losing weight isn't because hard as individuals make it out to be. We have all been there struggling to get rid of those little additional pounds. For some individuals it's difficult to reach the weight which they desire to be at.

Simple carbohydrates are found inside all white grain productsincluding rice, spaghetti, and rolls, removing them fromyou diet usually help you to lose weight fast plus effortless.Because they are digested instantly easy carbs can have youlooking for food more frequently, making it harder for you tolose pounds.

Understand how to lose weight by knowing which a simple diet won't do it, unless we plan on staying on that diet for the rest of the days! The fundamental rule of weight reduction is the fact that you should burn more calories than we take on by eating, which forces the body to eat it's fat reserves for vitality, plus makes you lose fat. You can do this by eating less or burning more calories, but recognize whatever you do should be a practical extended term solution, thus perhaps a combination of the two can function ideal for we.

High protein foods promote muscle building, which helps burn fat. Also, excess proteins are a "cleaner" source of power than fat or carbohydrates.

1 Practice controlled portion by eating tiny balanced food every time each day. Ideally lose weight fast go for just lean protein plus those foods that are low in fat. We should not turn to food for emotional comfort.

There, for example, the populace appeared to receive excited over the yearly appearance of seasonal fruits. I saw young reporters found on the TV news acting like cheerleaders because they went out to greenhouses, interviewed farmers plus sampled their strawberries inside early summer.

It is 1 thing to lose fat quick and effectively and another thing to do it fast plus unsuccessfully. The majority of individuals, who need quick results create a big calorie deficit, by cutting their calories. Although this way could seem to be functioning well, at the beginning, yet it constantly backfires. It is better to cut a calories by 20% or thus and then burn a great deal of calories with exercise.

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