“half life”是一个名词,主要含义为(放射性同位素的)半衰期,即从生物体中排出或放射性同位素分裂一半量的时间。 列举例句 The half-life of uranium-238 is about 4.5 billion years.(铀-238的半衰期约为45亿年。) The half-life of this medicine in the body is about 6 hours.(这种药物在体内的半衰期约...
Learn the three isotopes of hydrogen. Learn the number of protons and neutrons in each of the isotopes of Hydrogen along with their atomic and mass numbers. Related to this Question What is the half-life of plutonium? What is the half-life of uranium?
The initial decay rate of a nuclide is 1.77 x 10^12 /m. After 7.63 d, the decay rate is 1.82 x 10^11 /m. What is the half-life of the isotope? The half-life of uranium-234 is 2.46 times 10^5 years. What is the decay constant for ...
Uranium isotopes produce plutonium-239 as a decay product. The plutonium can be used in nuclear weapons and is a power source for nuclear reactors, which generate electricity. This isotope has a half-life of 24,100 years, causing concern in regions where radioactive plutonium has accumulated and...
The half-value period of uranium II]]>The half-value period of uranium II has been measured and found to be 1路70 105 years. The discrepancy between the two most recently determined measurements of the decay constant has been accounted for by using both an electrolytic method combined with ...
10.half life period 半衰期;半周期 用法例句 1. Business opportunities have a half-life, just like uranium. 商业机会有半衰期,就像铀一样。 2. Water and fish through a river, the fish only Half-Life. 水和鱼经过了一条大河,鱼只剩下半条命。 3. However, if the half-life is increased, the ...
2、biologicalhalf-life[化] 生物半衰期; 有机体中半排出期; 有机体中放射性同位素的半排出期 [医] 生物半存留期 3、crystallizationhalf-life[化] 结晶半衰期 4、effectivehalf-life[医] 有效半存留期 5、half life of enzyme [化] 酶半衰期 6、half life period [化] 半衰期 ...
1. Business opportunities have ahalf-life, just like uranium. 商业机会有半衰期,就像铀一样。 youdao 2. Water and fish through a river, the fish onlyHalf-Life. 水和鱼经过了一条大河,鱼只剩下半条命。 youdao 3. However, if thehalf-lifeis increased, the situation changes. ...
The history of African uranium mining, processing, and marketing falls into three general time periods. The first period, before the use of the first atomic weapons, reflects a time leading to the militarization of uranium. The second begins with the use of the first atomic bomb and lasts thr...
You can calculate the amount of substance that will remain after an elapsed time period, given the half-life of the substance and the equation for half-life. Half-Life Formula The half-life formula states: Nt= N0× (1/2)t/t½