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- Marie Curie (5862 bytes)
11: ...diation phenomena discovered by Professor [[Henri Becquerel]]". She was the first woman to be awarded a Nobe...
15: ... to win or share two Nobel Prizes. She is one of only two people who has been awarded a [[Nobel Prize]...
25: ...nce]] in 1934 was from [[leukemia]], almost certainly due to her massive exposure to radiation in her ... - Age of the Earth (20052 bytes)
29: ...ulations. However, they assumed that the Sun was only glowing from the heat of its [[gravitational con...
37: ...his estimates were correct. The geologists could only suggest (correctly) that Kelvin didn't have all ...
39: ...hen the French chemist [[Henri Becquerel|A. Henri Becquerel]] discovered [[radioactivity]]. In [[1898]], two ...
59: ...as [[helium]] atoms. At the time, Rutherford was only guessing at the relationship between alpha parti...
77: ...ample, he assumed that the samples had contained only uranium and no lead when they were formed. - Polonium (10219 bytes)
95: ...ce dissolves readily in dilute [[acid]]s, but is only slightly [[solubility|soluble]] in [[alkali]]s. ...
99: ... other places. However beta sources are more commonly used and are less dangerous.
104: ...re above 750 K. A few [[curie]]s ([[Becquerel|gigabecquerels]])of polonium-210 emit a blue glow which is caus...
123: ...rie), which is equivalent to a particle weighing only 6.8 x 10<sup>-12</sup> gram. Weight for weight p...
126: *[http://periodic.lanl.gov/elements/84.html Los Alamos National Laborato... - Radon (12616 bytes)
142: ... taken starting from concentrations of 400 [[Becquerel|Bq]]/m<sup>3</sup> for old houses, and 200 B...
159: ...ick PVC plastic sheeting can do the job well and only cost ?100 in a new build. In lieu of building w...
165: *[http://periodic.lanl.gov/elements/86.html Los Alamos National Laborato... - Radium (13138 bytes)
144: The SI unit of radioactivity is the [[becquerel]] (Bq), equal to one disintegration per second. ...
158: *[http://pearl1.lanl.gov/periodic/elements/88.html Los Alamos National... - Technetium (32113 bytes)
184: ...elements. On earth, technetium occurs naturally only in uranium ores as a product of spontaneous fiss...
187: ...ance similar to [[platinum]]. However, it is commonly obtained as a grey powder. Its position in the p...
189: ...[oxygen|O]]<sub>4</sub><sup>-</sup>.{{inote | ''LANL Periodic Table'', "Technetium" paragraph 3}} Com...
211: ...dded. The radioactive nature of technetium (3 M[[Becquerel|Bq]] per liter at the concentrations required) ma...
229: ... Building Blocks'', page 424, paragraph 2 and ''LANL Periodic Table'', "Technetium", paragraph 1}} Uni... - Uranium (27752 bytes)
158: ...actor]]s and [[nuclear weapon]]s. Uranium is commonly found in very small amounts in [[Rock (geology)|...
168: ...tor]]s and [[nuclear weapon]]s because it is the only isotope existing in nature to any appreciable ex...
172: ...ear fusion]]) would be "nuclear weapon", because only the nuclei participate.
191: ...ctivity|radioactive]] by French physicist [[Henri Becquerel]] in [[1896]], who first discovered the process o...
194: ...al scene. Before the discovery of [[plutonium]], only uranium was considered for the development of an... - Physics (25628 bytes)
112: ...oactivity]] was discovered in [[1896]] by [[Henri Becquerel]], and further studied by [[Maria Sklodowska-Curi...
116: [[Henri Becquerel]] accidentally discovered [[radioactivity]] in [[...
149: ...heaven there are two matters on which I hope for enlightenment. One is quantum electrodynamics, and th...
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