To form Pu239, do two of the neutrons somehowĬonvert to protons during the process of BetaĪ bare neutron will decay with a 12 minute half-life to a proton and an electron. Would be U239? If U239 then beta decay's twice Neutron, where do the extra two protons comeįrom? I would have thought that U238 + neutron If Pu239 is created from U238 capturing a slow If suchĪ finding is made this will most likely warrant the Noble Prize in Some very serious searches have been made but none have been found. If this were theĬase then it is most likely that such elements should be found in nature. Proton number 156 there will be an "Island of Stability". Will there ever be an element >118, that will be There would ever be any practical use for such elements. ![]() Knowledge of the nucleus and nuclear forces. These super-heavy elements would only broaden our Physicists have long believed that such elements will be long-live or "melt together") to form a new element containing 164 protons. The hope is that these two isotopes would merge (or Super-Heavy-Elements (SHE) has focused on trying to collide two isotopes of How can super heavy elements be prepared? What are the advantagesĪnd disadvantages of use of these elements? Iodine-131 behaves chemically the same as all other isotopes of Iodine it decays by beta(-) to stable Xe-131. ![]() However, caution should be exercised if the jewelry were to be worn constantly over many years.Įxplain the use of Iodine-131 in terms of its chemical properties and what's Iodine-131 decomposition equation? Limited wearing of this such jewelry most likely does not present a great risk. Some people also have reactions to metals such as nickel - which The other key question which is equally difficult to answer is how much of the metal would be absorbed into the body. Little is known of the toxicity of Terbium (Element 65 Tb). ![]() Is jewelry made from Terbium safe to use? Positron emission results in gamma emission (at 511 Kev). So, electron capture emits x-rays (less than 100 kev). When positron emission occurs the positron is immediately annihilated with the emission of two 511 Kev gamma photons being emitted at 180 degrees apart. The energy of these x-rays will be below 100 Kev. This will always result in x-rays be emitted. so feel free to Ask our Expert's a question.Ĭontrast between electorn capture and positron emission?Įlectron capture is the capture of an inner shell electron by the nucleus. Questions & Answers for Ask an Expert were randomly selected from our archives.įor privacy, we do not reveal "user" information.
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