Question

The half-life of plutonium-238 is 87.7 years.

What percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.1 years?
%



What percentage of the atoms in the same sample of plutonium-238 will have changed to another isotope after 263.1 years?
%

Answer 1

What is the half life of plutonium 238?

Nuclear Waste

Other important isotopes are plutonium-238 (half-life 87.7 years), plutonium-240 (half-life 6564 years), plutonium-241 (half-life 13 years), and plutonium-242 (half-life 3.76×105 years). All of these isotopes have very high radiotoxicity.

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