Question
Write any four points of difference between fluorine and other halogens.
| Fluorine | Other halogens | |
| Reactivity | Fluorine is much more reactive due to its small atomic size, high nuclear charge and low F - F bond dissociation energy | Other halogens are less reactive than fluorine. |
| Hydrogen bonding | Hydrogen bonding is present in hydrides of fluorine. | Hydrogen bonding is not present in hydrides of other halogens. |
| Oxidation state | Due to the highest electronegativity and absence of the vacant d-orbitals in the valence shell, fluorine shows only -1 oxidation state in all its compounds. | Other halogens show -1 , + 1, + 3, +5 and + 7 oxidation states. |
| Polyhalide ions | Due to absence of vacant d-orbitals in the valence shell, fluorine does not form any polyhalide ion. | Other halogens form polyhalide ions such as $I _3^{-}, Br _3^{-}, Cl _3^{-}$. |
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