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The reduction in the force of attraction between the nucleus and outer most electron is known as shielding effect
It had most effect on outer shell electrons.
Most metals are stable and thus not radioactive.
To some extent most elements are radioactive whenever there is a possibility of an unstable isotope. However, generally speaking, gold is not considered to be radioactive. Having said that, radioactive gold can be made.
1. astatine is a halogen that is radioactive.
Cancer usually requires some form of radioactive treatment, such as one of the most infamous methods, chemotherapy.
All research reactors must have a special shielding around it to protect researchers from exposure. Most often this shielding is made of lead.
The reduction in the force of attraction between the nucleus and outer most electron is known as shielding effect
The three types of natural radioactivity are alpha, beta and gamma radiation. Gamma rays are the most energetic, and the hardest to shield against as they do not readily interact with shielding material. Alpha and beta radiation are actually particles. The beta particle is an electron that has been released. Because of its mass, it more readily reacts with shielding material, and so cannot penetrate as far. Alpha particles are the largest and consist of two neutrons and two protons. Shielding is most effective against alpha particles. Your outer layer of dead skin or a T-shirt is generally enough to protect against alpha particles. However, this effectiveness of shielding does not mean that gamma is always the most harmful and alpha the least. The high effectiveness of shielding on alpha particles is due to the fact that they most readily react with the shield (i.e. damage it). This means that if the alpha particle is able to come in contact with living tissue (like the ingestion of radioactive liquids) it will do far more damage than a beta particle or gamma ray.
It had most effect on outer shell electrons.
The most easily absorbed radioactive is Alpha
Most metals are stable and thus not radioactive.
To some extent most elements are radioactive whenever there is a possibility of an unstable isotope. However, generally speaking, gold is not considered to be radioactive. Having said that, radioactive gold can be made.
alpha radiation
Emanation is simply something that is emitted or radiated. Data emanation is simply the emission of data via either wired or wireless means. It does not just deal with wireless devices though wireless devices such as wireless mice, bluetooth devices or Wi-Fi are of particular concern. Wired devices can be still be susceptible to data emanation. Techniques such as jamming or blocking electromagnetic radiation using special cages/walls can be used. Most cables are designed to block EMI interference. Though it is meant to keep EMI out instead of in, the basic concept is still sound.
Hydrogen is not radioactive; its two most common isotopes are stable.
Most of the natural occurring (isotopes of) elements are NOT radioactive.Though most of all the known isotopes are radioactive but most of them do NOT naturally occur.