![]() You breathe in some radon with every breath, but then you breathe it right back out, since it isn't chemically active or electrically charged. Being a noble gas, radon is fairly harmless itself. It diffuses right through solids and ends up floating freely in the air. Since radon is a noble gas, it is chemically inert and, as a gas, it doesn't stay bound in the solid the way its parent did. One of the lighter elements in the chain of decay of uranium 238 (U238) is radon, a radioactive noble gas. But these radioactive materials eventually decay into lighter elements, emitting energetic sub-atomic particles and radiation in the process. Ordinarily, radioactive materials around you are safely bound up in solids, like trace amounts of radioactive isotopes of uranium, thorium, or radium, trapped in the concrete and earth beneath your feet. If the level of radon exceeds the established "action level," the homeowner must take steps to reduce the level of radon gas, often by increasing the ventilation. In some parts of the country, it is required by law that homeowners place radon detectors in their basements to monitor the level of radon gas. Radon gas seeps from the ground and can accumulate in areas that are exposed to Earth's crust and that have inadequate ventilation. One kind of radioisotope that poses health risks is radon gas. Unstable atoms, called radioisotopes (radioactive isotopes), are commonly used to study living organisms, to diagnose and treat diseases, to sterilize medical instruments and food, to produce energy for heat and electric power, and to monitor steps in various industrial processes. A half-life can be very short (less than one millionth of a second) or very long (millions of years). The length of time for one-half of the nuclei in a radioactive sample to decay is called its half-life. The radioactive substance does, however, break down at a predictable rate. Radioactivity is a random process-there is no way to know which atom in a mixture is going to decay. The energy that is released in the process is made up of small, fast-moving particles and high-energy waves. These unstable atoms are radioactive, meaning they emit radioactivity from the nucleus as they decay. There are stable atoms, which remain the same over billions of years, and unstable atoms, which decay into new atoms. Before we get to the electronics, though, we should explore the basic science of radioactivity.Ītoms are found in all matter. *This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.In this electronics science project, you will build and test a device that is designed to detect radon, a radioactive gas. ON Semiconductor is dedicated to innovation and customer satisfaction, and is committed to providing its customers with the best semiconductor solutions to meet their needs. ![]() The company's products are designed to be energy efficient, reliable, and cost-effective, and are used in a variety of applications, including portable electronics, industrial automation systems, renewable energy systems, and automotive electronics. ON Semiconductor offers a broad portfolio of power management, analog, and discrete semiconductors, including power MOSFETs, diodes, rectifiers, and voltage regulators, among others. The company was founded in 1999 and is headquartered in Phoenix, Arizona. ON Semiconductor is a publicly traded company that designs, develops, and manufactures a wide range of semiconductor products for various applications, including automotive, computing, consumer, industrial, and communications markets. One Watt Darlington Transistor NPN Silicon One Watt Darlington Transistors PNP Silicon One Watt Darlington Transistors(PNP Silicon) One Watt Darlington Transistors(NPN Silicon) One Watt Darlington Transistors NPN Silicon
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