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couple’s discoveries concerning their researches on the Becquerel’s rays. 3. Describe the procedures which Maria and Pier Curie succeeded to isolate radium and to determine its atomic mass, by their inquiry [...] inquiry in the web and to present certain points about the cathode rays, the X- rays, the rays of Becquerel, the a, b, c, rays or the alpha, βeta, and γ rays, based on a proposed framework data collection

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• Maria Skłodowska-Curie: discoverer of two radioactive elements

social situation prevailing at that time, the study the Becquerel rays, the discovery of two new chemical elements by Maria Curie with her husband, the Nobel Prize was given to Maria Curie for two times [...] ………………………………………… ………………………………………………… Activity 6 The study of the rays was the context in which there were realized important scientific achievements such as the cathode rays, the X-rays, the rays of Becquerel, the a,b,c, rays or the alpha, βeta, and γ rays. Please all groups made an agreement, so that each group to study one or two concepts and present the

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• Maria Skłodowska-Curie: discoverer of two radioactive elements

of matter (Müller 2004). Particularly, the analysis of cathode rays appeared to be promising. Among the researchers working in this field was J. J. Thomson. He analyzed cathode rays and established [...] effects certainly existed due to Röntgen’s demonstration of X-rays. His discov- ery opened a new scientific field, which was not entered immediately by him or other scientists since the rays emitted [...] seemingly did not exist on Earth. That α-rays were positive particles while the β- rays were negatively-charged electrons meant that not only could the negative substance be

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• Maria Skłodowska-Curie: discoverer of two radioactive elements
• Joliot-Curie and artificial radioactivity
• Rutherford’s Nuclear Atom
• Dalton and the atoms
• Lavoisier and the conservation of mass
• Democritus and the atoms

of matter (Müller 2004). Particularly, the analysis of cathode rays appeared to be promising. Among the researchers working in this field was J. J. Thomson. He analyzed cathode rays and established [...] effects certainly existed due to Röntgen’s demonstration of X-rays. His discov- ery opened a new scientific field, which was not entered immediately by him or other scientists since the rays emitted [...] seemingly did not exist on Earth. That α-rays were positive particles while the β- rays were negatively-charged electrons meant that not only could the negative substance be

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• Maria Skłodowska-Curie: discoverer of two radioactive elements

and the Rutherford’s atomic model. 3. Design the courses of the a rays in the J.J. Thompson’s atomic model and the Rutherford’s atomic model. 4. Locate the differences between the J.J. Thompson’s atomic [...] Atom. London: Priory Press Limited. Niaz, M. (1998). From cathode rays to alpha particles to quantum of action: A rational reconstruction of structure of the atom and its implications for chemistry

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• Rutherford’s Nuclear Atom

of matter (Müller 2004). Particularly the analysis of cathode rays appeared to be very promising; among the researchers working in this field was J.J. Thomson. Thomson analyzed these cathode rays and [...] experiments in which he used different cathode materials to emit the rays (which were basically emitted by heating up the cathode, the rays were then accelerated with an electric field). Thomson could show [...] effects certainly existed due to Röntgen’s demonstration of the X-rays) opened a new field. Yet, this field was not entered immediately by Becquerel himself or other scientists, but the rays emitted from

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• Lavoisier and the conservation of mass

major issue, and became expanded towards analyzing also cathode rays and their interaction with gases that

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• Dalton and the atoms

of matter (Müller 2004). Particularly the analysis of cathode rays appeared to be very promising; among the researchers working in this field was J.J. Thomson. Thomson analyzed these cathode rays and [...] methods) and seem- ingly did not exist on Earth. Yet, as the α-rays appeared to be positive particles whilst the β- rays were electrons, this meant that not only the electrons could be emitted from [...] and charge of the particles that formed the rays were determined. This was done by applying a well defined magnetic field rectangular to the direction of the rays – from the deflection

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• Democritus and the atoms

major issue, and became expanded towards analyzing also cathode rays and their interaction with gases that are filled into the tubes. In doing so, exper- imentalists had hoped to develop a further un- [...] of matter (Müller 2004). Particularly the analysis of cathode rays appeared to be very promising; among the researchers working in this field was J.J. Thomson. Thomson analyzed these cathode rays and [...] experiments in which he used different cathode materials to emit the rays (which were basically emitted by heating up the cathode, the rays were then accelerated with an electric field). Thomson could show

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• Joliot-Curie and artificial radioactivity

Reparative Self- and Worldmaking in Leanne Betasamosake Simpson, Billy-Ray Belcourt, and Joshua Whitehead” Laura Jungblut, “‘backstabbing my gákti’: Wearing Indigeneity in Correspondence Between Sápmi and