The uranium in the earth’s crust is 0.7% 235U and 99.3% 238U. Two billion years ago, 235U comprised approximately 3% of the uranium in the earth’s crust. This tells you something about the relative half-lives of the two isotopes. Suppose you have a sample of 235U and a sample of 238U, each with exactly the same number of atoms.A. The sample of 235U has a higher activity.B. The sample of 238U has a higher activity.C. The two samples have the same activity.
Nuclear Fusion
Nuclear fusion is a type of nuclear reaction. In nuclear fusion, two or more than two lighter atomic nuclei combine to form a heavier nucleus. During this process, an enormous amount of energy is released. This energy is called nuclear energy. Nuclear fusion is the energy source of the sun and stars.
Fusion Bomb
A fusion bomb is also known as a thermonuclear bomb or hydrogen bomb which releases a large amount of explosive energy during a nuclear chain reaction when the lighter nuclei in it, combine to form heavier nuclei, and a large amount of radiation is released. It is an uncontrolled, self-sustaining nuclear chain reaction where isotopes of hydrogen combine under very high temperature to form helium. They work on the principle of operation of atomic fusion. The isotopes of Hydrogen are deuterium and tritium, where they combine their masses and have greater mass than the product nuclei, get heated at high temperatures, and releases energy.
The uranium in the earth’s crust is 0.7% 235U and 99.3% 238U. Two billion years ago, 235U comprised approximately 3% of the uranium in the earth’s crust. This tells you something about the relative half-lives of the two isotopes. Suppose you have a sample of 235U and a sample of 238U, each with exactly the same number of atoms.
A. The sample of 235U has a higher activity.
B. The sample of 238U has a higher activity.
C. The two samples have the same activity.
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