Radium is a chemical element with the symbol Ra and is a highly radioactive rare metal. The roles and hazards of radium are as follows:
1. The role of radium is mainly reflected in two aspects. First, radium's radioactivity is widely used in the nuclear energy industry as one of the fuels for nuclear reactors. Radium's radioactivity can produce a large amount of heat energy, so it can be used to drive nuclear submarines, nuclear-powered aircraft carriers and other ships and airplanes.
2. Secondly, radium is also used in the medical field. The radioactivity of radium can destroy tumor cells, which is effective in treating cancer. In addition, radium can also be used in the industrial field, such as processing and cutting materials with radium technology.
3, the harm of radium can not be ignored. First of all, the radioactivity of radium is very harmful to the human body, long-term exposure to radium will increase the risk of cancer. Secondly, the radioactivity of radium will also pollute the environment, for example, in the process of nuclear power generation, if not handled properly, radium will leak into the environment, causing great harm to human beings, animals and plants.
4. In the process of using radium, strict protective measures must be taken to minimize the harm to the environment and human body. At the same time, the production, use and disposal of radium also need to be strictly regulated and managed to ensure safety. Overall, radium is a chemical element with important application value and potential hazards, which needs to be researched and applied under the premise of science and safety.
Related Knowledge of Chemical Elements
1. The chemical elements are the basic units of matter, they are atoms or molecules with unique atomic structure and chemical properties. Types of elements: elements can be categorized according to their atomic number, the number of electrons outside the nucleus, the number of protons and so on. For example, hydrogen is the element with the smallest atomic number, element number one; iron is the element with the largest atomic number, element number 26.
2, the nature of the element: the nature of the element by its atomic structure, such as electron arrangement, atomic radius, electronegativity and so on. These properties directly affect the chemical reactivity, electrical conductivity, magnetism, etc. of the elements.
3, the periodic table of elements: the periodic table is in accordance with the atomic number of a table, the horizontal column as a family, the vertical column as a cycle. Elements in the same period have similar chemical properties, while elements in the same group have similar physical properties.
4, the relationship between the atomic number of elements and the number of electrons outside the nucleus: atomic number is equal to the number of electrons outside the nucleus. Classification of elements: elements can be categorized into metallic, nonmetallic and quasi-metallic elements. The chemical reactivity of elements: the chemical reactivity of elements is related to their atomic structure, such as the reactivity of metallic elements and their electron arrangement.