v) Check Question 5: Radioactivity (See textbook Chapter 6 - Exercise 4) Natural uranium is a mixture of 99.3% 238U and 0.7% 235U. The half-life for a emission by the first nucleus is 4.5 x 109 years and of the second one is 7 x 108 years. a) How long ago were the amounts of the two isotopes in a sample the same? b) If a sample initially had 10 g of natural uranium, what is the mass of He gas produced since that time by the two isotopes? m uthonk Chapter 6 - Exercise 6) mante
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.
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