What the Hell U0001f92c | FinShorts#228

What is the percentage of ""_(92) U ^(235) in ""_(92) U ^(238) ?

What is the value of binding energy per nucleon in case of ""_(92)U^(238) ?

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

What would be the area of the triangle with A(8,8), B(22,8) and C(16,-10) as vertices?

(a) On analysis a sample of uranium ore was found to contian 0.277g of ._(82)Pb^(206) and 1.667g of ._(92)Pb^(206) and 1.667g of ._(92)U^(238) . The half life period of U^(238) is 4.51xx10^(9) year. IF all the lead were assumed to have come from decay of ._(92)U^(238) , What is the age of earth? (b) An ore of ._(92)U^(238) is found to contain ._(92)U^(238) and ._(82)Pb^(206) in the weight ratio of 1: 0.1 The half-life period of ._(92)U^(238) is 4.5xx10^(9) year. Caluculate the age of ore.

The half life of ._92U^(238) against alpha decay is 1.5xx10^(17)s . What is the activity of the sample of ._92U^(238) having 2.5xx10^(21) atom?

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.