please answer D 2. Caesium-137 decays via β - emission with a half-life of 30.17 years. A sample is initially measured to have an activity of 400 Bq. You may use 1 year = 31,556,952 s. a. Write the β - decay reaction. _____________________________________________________ b. What is the initial number of Cs-137 atoms in the sample? ________________________ c. How long will it take for the sample to have an activity of 100 Bq? ________________________ d. How long will it take until there is only 11.0% of the initial number of Cs-137 atoms remaining?
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.
please answer D
2. Caesium-137 decays via β - emission with a half-life of 30.17 years. A sample is initially measured to have an activity of 400 Bq. You may use 1 year = 31,556,952 s.
a. Write the β - decay reaction. _____________________________________________________
b. What is the initial number of Cs-137 atoms in the sample? ________________________
c. How long will it take for the sample to have an activity of 100 Bq? ________________________
d. How long will it take until there is only 11.0% of the initial number of Cs-137 atoms remaining? ________________________
Step by step
Solved in 2 steps with 2 images
