What is radiation?

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Referat, Hausaufgabe, What is radiation?
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Referat
What is radiation? Radiation consists of three types of particles: Alpha particles:An alpha particle consists of 2 protons and 2 neutrons. So it has a mass of 4 units. It shoots out of the radioisotope at high speed but slows down quickly in air. It can t pass through paper or skin. The radioisotope americium-241 is used in smoke alarms. It has 95 protons, and decays by giving out an alpha particle. That leaves 93 protons, which means it has turned into neptunium: 241Am 237Np an alpha particle 95 93 The mass number has changed into 237. Beta particles:A beta particle is a fast electron. This means that a beta particle has no mass. It can travel 20 or 30 cm in the air, and also through skin, paper and thin sheets of metal. It is formed when an neutron turns into a proton and an electron. ...

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Referat
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