CK-12 Physical Science Concepts - For Middle School

3.61. Beta Decay http://www.ck12.org Q:Try to balance the following nuclear equation for beta-minus decay by filling in the miss ...

http://www.ck12.org Chapter 3. Chemical Interactions 3.62 Gamma Decay Describe gamma rays. State how and why gamma decay occurs ...

3.62 Gamma Decay Gamma Rays and Radioactive Decay Gamma rays are produced when radioactive elements decay. Radioactive elements ...

http://www.ck12.org Chapter 3. Chemical Interactions gamma ray: Type of wave in the electromagnetic spectrum that has the short ...

3.63 Radioactive Half-life 3.63 Radioactive Half-life Define the half-life of a radioisotope. Explain variation in half-lives. ...

http://www.ck12.org Chapter 3. Chemical Interactions Half-Life Example The concept of half-life is illustrated in theFigure3.113 ...

3.63. Radioactive Half-life http://www.ck12.org Vocabulary half-life: Length of time it takes for half of a given amount of a r ...

http://www.ck12.org Chapter 3. Chemical Interactions 3.64 Half-life and Radioactive Dating Define radioactive dating. Describe ...

3.64 Half-life and Radioactive Dating FIGURE 3.114 loses a particle (in this case a type of particle called an alpha particle), ...

http://www.ck12.org Chapter 3. Chemical Interactions FIGURE 3.115 Summary The age of a rock or other specimen can be estimated ...

3.64. Half-life and Radioactive Dating http://www.ck12.org Compare the decay rates of carbon-14 and uranium-238. How long does ...

http://www.ck12.org Chapter 3. Chemical Interactions 3.65 Nuclear Fission Outline what happens during nuclear fission. Describe ...

3.65 Nuclear Fission Q:What causes the nucleus of uranium-235 atom to fission? A:Another particle collides with it. How Nuclear ...

http://www.ck12.org Chapter 3. Chemical Interactions FIGURE 3.118 Using Energy from Nuclear Fission If a nuclear chain reaction ...

3.65. Nuclear Fission http://www.ck12.org Pros and Cons of Nuclear Energy In the U.S., the majority of electricity is produced b ...

http://www.ck12.org Chapter 3. Chemical Interactions How was nuclear fission discovered? Describe in detail what happens to a u ...

3.66 Nuclear Fusion 3.66 Nuclear Fusion Describe how and where nuclear fusion occurs. Outline the pros and cons of using nuclea ...

http://www.ck12.org Chapter 3. Chemical Interactions FIGURE 3.120 Nuclear Fusion MEDIA Click image to the left for use the URL b ...

3.66. Nuclear Fusion http://www.ck12.org A: Nuclear fusion doesn’t occur naturally on Earth because it requires temperatures far ...

http://www.ck12.org Chapter 3. Chemical Interactions Nuclear fusion of hydrogen to form helium occurs naturally in the sun and ...