{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Radioactivity activity

Radioactivity activity - Radioactivity Why Not all elements...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Radioactivity Why? Not all elements and isotopes are stable. Radioactivity is the spontaneous emission of particles or energy from the nucleus of an unstable isotope. Such isotopes are called radioisotopes . Nuclear chemistry is the subdiscipline of chemistry that studies nuclear reactions and uses them in research, technology, and medicine. An understanding of nuclear chemistry is essential in discussing issues associated with radioactivity, nuclear power generation, disposal of radioactive waste, and the intelligent use of radiation in medicine. Learning Objectives Students should be able to … Describe what happens in the radioactive decay of an isotope Write correct nuclear reaction equations to describe how nuclei change by fission, fusion, and the emission or capture of particles. Information In writing and interpreting nuclear reactions, it is important to use complete atomic symbols. Recall that a complete atomic symbol includes the symbol for the element, a left superscript for the mass number (A), and a left subscript for the atomic number (Z). ° ± ² Some examples are: ³ ´ µ¶ , ³, · µ µ , · µ ´ µ¸ Review Questions 1. What information is provided by the atomic number, Z?
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern