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what is formula unit in chemistry. It is the lowest possible ratio of the cations and anions of a given ionic compound. NaCl is the formula unit for the ionic compound sodium chloride.
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When we look at any given ionic compound it is made up of molecules out of which one molecule is positively charged and the other one is negatively charged. A formula unit which I often abbreviate to fu just for fun is the empirical formula for an ionic compound. It is the lowest ratio of ions represented in an ionic compound in total number.
Formula unit noun Chemistry.
Examples include ionic NaCl and K 2 O and covalent networks such as SiO 2 and C as diamond or graphite. The formula unit for common salt is NaCl. It is related to the concept of an empirical formula which is the simplest chemical formula expression for a non-ionic chemical compound. It is used just like the term atom is the smallest representative particle of an element or a molecule is the.
