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A slow neutron (n) is captured by a ._(92)U^(235) nucleus forming a highly unstable nucleus ._(92)U^(236**) (where ** ddenotes that the nucleus is in an excited state). The fission of the nucleus occurs by

When ._(92)U^(235) undergoes fission, 0.1% of the original mass is released into energy. How much energy is released by an atom bomb which contains 10kg of ._(92)U^(235) ?

When ._92 U^235 undergoes fission, 0.1 % of its original mass is changed into energy. How much energy is released if 1 kg of ._92 U^235 undergoes fission ?

Natural uranium is a mixture of three isotopes _92^234U , _92^234U , _92^235U and _92^238U with mass percentage 0.01%, 0.71% and 99.28% respectively. The half-life of three isotopes are 2.5xx10^5yr , 7.1xx10^8yr and 4.5xx10^9yr respectively. Determine the share of radioactivity of each isotope into the total activity of the natural uranium.

Which of the following pairs represent isotopes and which represent isobars? ""_(92)^(235) U, ""_(92)^(238)U Calculate the difference in the number of neutrons in the isotopic pairs.

What are the numbers of protons and neutrons in the nucleus of ._92U^(238) ?

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