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. State modern periodic law. What do you un-derstand by electron affinity of an element?Why electron affinity of chlorine is more than fluorine? |
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Answer» thelawthat the properties of the elements areperiodicfunctions of their atomic numbers. Also called Mendeleev'slaw. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights. the electron affinity of an atom or molecule is defined as the amount of energy released or spent when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion Fluorine, thoughhigher than chlorinein the periodic table, has a very small atomic size. This makes the fluoride anion so formed unstable (highly reactive) due to a very high charge/mass ratio. ... As a result,fluorinehas anelectron affinitylessthanthat ofchlorine |
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