When we look at the trends of periodic table, there is an interesting correlation to be noticed. Along a period, when we look at the trends in reactivity of an element( Both due to electropositivity AND electronegativity) the trend is that from the right to the left, first there is a decrease and then an increase; which is definitely sensible. The question that arises is due to this observation that same happens with the boiling point and the melting point of that particular element. It first decreases and then increases. So this leads to the intuition that the reactivity (ie combining capacity ) also affects the physical characteristics of that particular element. If such is the case, the WHY EXACTLY does this happen- what is the explanation behind this phenomenon. If this intuition is false, then correction would be highly appreciated.
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