Generally, it does not matter which definition you use, but if you are asked to give examples of pure substances as a homework. By this definition, only elements and compounds are pure substances, while homogenous mixtures are not. The three main types of bonds are ionic, covalent, and metallic.These distinct types of chemical bonds form distinct. Synonyms for COMPOUND: mixture, blend, alloy, mix, amalgam, combination, amalgamation, synthesis Antonyms of COMPOUND: component, element, ingredient, constituent. It's thought that another one of these magic numbers lies just beyond the range of currently known elements, which means we could potentially discover some new elements that are relatively stable and extremely massive. Some people define a pure substance to be a material that consists of one type of 'building block' of matter. Atoms of more than one type of element can bond together and form compounds. There are believed to be certain numbers/ratios that are inherently more stable. By this definition, only elements and compounds are pure substances, while homogenous mixtures are not. A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Hence, larger atoms become more unstable. Some people define a pure substance to be a material that consists of one type of 'building block' of matter. In chemistry, a compound is a substance made up of two or more different chemical elements combined in a fixed ratio. The ratio of neutrons to protons gradually increases to try to compensate, but this results in the neutrons getting more unstable themselves, resulting in more opportunity for weak forces to destabilize them. With all of that to consider, as you get larger and larger nuclei with more protons, the electromagnetic forces increase, as well as the distances in the nuclei, putting more strain on the nuclear forces holding it all together. These bonds form as a result of the sharing or exchange of electron s among the atoms. Neutrons will help add to this nuclear force, but they tend to become unstable when they get into too great of concentration and the weak force will cause them to decay into protons. compound: 1) In chemistry, a compound is a substance that results from a combination of two or more different chemical element s, in such a way that the atom s of the different elements are held together by chemical bonds that are difficult to break. Fusion allows these protons to get close enough together for the stronger, yet short ranged, nuclear force to overpower the electromagnetic force. It contains only sulfur atoms, and nothing else, so it is pure. The electromagnetic force of the protons wants to push them away from each other. It is made of only one type of atom: iron atoms. There are several forces at work inside the nuclei of atoms.
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