22.3. Nuclear Reactions http://www.ck12.org
- What was used as a target in the Cockcroft and Walton experiment?
- Name two famous scientists whose actual voices are heard in this video.
Review
Questions
- The isotope^23893 Np has a half-life of 2.0 days. If 4.00 grams are produced at noon on Monday, what will be the
mass of neptunium remaining at noon on Tuesday of the following week? - Write the equation for the alpha decay of a polonium-214 nucleus. Recall from the conceptRadioactiv-
itythatα=^42 He. - Complete the following equation:^21 H+^21 H→^31 H
- fission:The breakup of a larger nucleus into two or more smaller nuclei is called fission.
- fusion:The joining together of two or more smaller nuclei to form a larger one is called fusion.
- half-life:The time required for half of the atoms in any given quantity of a radioactive substance to decay is
the half-life of that element.