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Topic 7_2__Radioactive decay
Topic 7_2__Radioactive decay

Jeopardy Nuclear Physics
Jeopardy Nuclear Physics

chap6 (WP)
chap6 (WP)

Atomic Theory and the Nuclear Atom
Atomic Theory and the Nuclear Atom

radioactivity and radioactive decay - rct study guide
radioactivity and radioactive decay - rct study guide

... gravitational forces are much too small to hold the nucleons together compared to the electrostatic forces repelling the protons. Since stable atoms do exist, there must be another attractive force acting within the nucleus. The nuclear force is independent of charge. It acts equally only between pa ...
Beta decay is a type of radioactive decay in which a beta
Beta decay is a type of radioactive decay in which a beta

E = mc 2 - Gordon State College
E = mc 2 - Gordon State College

... • Nuclear fusion is produced by high temperature resulting in more tightly bound nuclei. • Mass decreases as energy is released. • This is analogous to chemical combustion requiring a high temperature, where the end result is energy release and a tightly bound molecule. • A solution is still being s ...
Nuclear Physics - Assam Valley School
Nuclear Physics - Assam Valley School

... 19. Compare the : (a) ionising power, (b) penetration power of α, β and γ-particles. Ans. (a) Ionising power : If one unit is ionising power of γ-radiations, then 100 units is ionising power of β-particles and 10000 units is the ionising power of α-particles. (b)Penetration power : γ-radiations can ...
catch some rays: alpha, beta, gamma (modified for adeed)
catch some rays: alpha, beta, gamma (modified for adeed)

Chapter 18 - An Introduction to Chemistry: Nuclear
Chapter 18 - An Introduction to Chemistry: Nuclear

Atoms1 - Cbsephysicstutorials
Atoms1 - Cbsephysicstutorials

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Nuclear Chemistry

Physics and Chemistry 1501 – Nuclear Science Part I VO Atomic
Physics and Chemistry 1501 – Nuclear Science Part I VO Atomic

View Transcript
View Transcript

PHY303 1 TURN OVER PHY303 Data Provided: A formula sheet
PHY303 1 TURN OVER PHY303 Data Provided: A formula sheet

Critical Thinking Questions 2
Critical Thinking Questions 2

II. Radioactive Decay
II. Radioactive Decay

radioactive decay - Southwest High School
radioactive decay - Southwest High School

Nuclear Chemistry
Nuclear Chemistry

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Chapter 30 Nuclear Physics and Radioactivity

Chapter 14 REACTORS AND ACCELERATORS
Chapter 14 REACTORS AND ACCELERATORS

... earth.  The  reasons  that  other  nuclear  reactions  do  not  normally  occur  on  earth  are   simple.  Nuclear  reactions  that  are  induced  by  protons  or  heavier  charged  particles   all   have   large   activation   barriers   ...
12B describe radioactive decay process in terms of balanced
12B describe radioactive decay process in terms of balanced

radioactivity - the Scientia Review
radioactivity - the Scientia Review

... Radioactivity has many applications in the medical field, ranging from its use in treatment methods for various diseases to most common medicinal implementations of this chemical occurrence and is often used to treat cancer and kill malignant cells in the ...
how did we find out about nuclear power? isaac asimov
how did we find out about nuclear power? isaac asimov

... element named uranium (yoo- RAY-nee-um). The compound glowed when sunlight fell on it, and Becquerel wondered if the glow contained X-rays. Becquerel exposed the compound to the sun. He then wrapped it in black paper and placed it near a photographic plate in the dark. If the glow were ordinary ligh ...
Document
Document

... A daughter nucleus is unstable nucleus, undergoes further disintegration till it attains stable nucleus. 88Ra226  86Rn222 + 2He4. If radioactive element decays by giving  particle then its atomic mass does not change but its atomic number increases by 1. Thus new element formed is called “Isobar ...
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Nuclear fission product

Nuclear fission products are the atomic fragments left after a large atomic nucleus undergoes nuclear fission. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons, the release of heat energy (kinetic energy of the nuclei), and gamma rays. The two smaller nuclei are the fission products. (See also Fission products (by element)).About 0.2% to 0.4% of fissions are ternary fissions, producing a third light nucleus such as helium-4 (90%) or tritium (7%).The fission products themselves are often unstable and radioactive, due to being relatively neutron-rich for their atomic number, and many of them quickly undergo beta decay. This releases additional energy in the form of beta particles, antineutrinos, and gamma rays. Thus, fission events normally result in beta radiation and antineutrinos, even though these particles are not produced directly by the fission event itself.Many of these isotopes have a very short half-life, and therefore give off huge amounts of radiation. For instance, strontium-90, strontium-89 and strontium-94 are all fission products, they are produced in similar quantities, and each nucleus decays by shooting off one beta particle (electron). But Sr-90 has a 30-year half-life, Sr-89 a 50.5-day half-life, and Sr-94 a 75-second half-life. When freshly created, Sr-89 will spray beta particles 10,600 times faster than Sr-90, and Sr-94 will do so 915 million times faster. It is these short-half-life isotopes that make spent fuel so dangerous, in addition to generating much heat, immediately after the reactor itself has been shut down. The good news is that the most dangerous fade quickly; after 50 days, Sr-94 has had 58,000 half-lives and is therefore 100% gone; Sr-89 is at half its original quantity, but Sr-90 is still 99.99% there. As there are hundreds of different isotopes created, the initial high radiation fades quickly, but never fades out completely.
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