Chemical property of S- block element... ✍✍✍✍✍✍

1.	Chemical property of S- block element... ✍✍✍✍✍✍
Answer» Ha moti.. ???<br>1) All the\xa0alkali metals are highly reactive\xa0elements since have a strong tendency to lose the single valence s-electron to form uni positive ions having inert gas configuration.2) This\xa0reactivity arises\xa0due to their low ionisation enthalpies and high negative values of their standard electrode potential.3) Due to their strong tendency to lose the single valence electron ,alkali metals also act as a\xa0strong reducing agents. Reactivity of an element is measured in terms of its reducing character.4)\xa0Ionization enthalpy\xa0is a measure of the tendency of an atom to lose electrons in the gaseous state.Thus, lower the ionization enthalpy, greater is the tendency of an element to lose electron and hence stronger is the reducing character or higher is the reactivity of the element.5)The\xa0ionization enthalpies of alkali metal decreases down the group, therefore, their reducing character or reactivity in the gaseous state increases from Li to Cs , i.e. Li< Na< K< Rb<Cs.

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