Similar Questions 1 g atom of nitrogen contains 6.023×1023 atoms of nitrogen. View Solution The radium and uranium atoms in a sample of uranium mineral are in the ratio of 12.8×106. If half life period of radium is 1620 years , the half life period of uranium will be View Solution ...
“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 ...
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 ...
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...
Define half-life. What is the half-life of uranium-234? What is the half-life of polonium-214? What is the end-product of the decay of uranium-238? Glossary half-life:That period of time needed for one-half of a given quantity of a substance to undergo change. ...
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 ...
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 ...
The half-life period of an isotope is 4 hours. After 8 hours, what fraction of the initial quantity of the isotope will be left behind? The half life of radium-226 is 1.0 * 10^4 yr. How many hours will it take for a .250 g sample to decay to the ...