Nuclear Decay

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Questions

• How does carbon 14 differ from carbon 12 and 13?
• Why radioactivity is a nuclear phenomenon?
• Is radioactivity spontaneous?
• What causes radioactivity?
• What causes nuclear decay?
• What are some examples of radioactive isotopes?
• How does nuclear decay affect the atomic number and mass number?
• How does alpha, beta and gamma rays change the nucleus?
• How do alpha particles enter the human body?
• How is radioactivity used in the treatment of diseases?
• How is radioactive decay used in carbon dating?
• What are gamma rays?
• What is radioactivity?
• Why is radioactive decay a stochastic process?
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• Why does radioactive decay happen?
• What type of energy does nuclear decay produce?
• How does radioactive decay change an element?
• How does radioactive decay affect our lives?
• What nuclear decay can be stopped by aluminum?
• How does radioactive decay affect living things?
• Why does radioactive decay occur? ?
• Two isotoprs of uranium U235(3.9x10^-25 kg) , U238(3.95x10^-25kg) into spectrometer (1.05x10^5 m/s). Each isotope is singly ionized and B field(0.75T). What is the distance between the two isotopes?
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• 'Radiocarbon dating' is used to find the age of formerly-living things. The halflife of carbon-14 is 5730 years. By how much will the original amount of #""^14C# decrease after 5 halflives?
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• Please help me this question?
• The initial mass of a radioactive goo is 180 grams. After 195 minutes, the sample has decayed to 2.8125 grams. Find the half-life of the substance in minutes? Find a formula for the amount, G(t), remaining at time t.? Find grams remain after 35 min?