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What is atomic size? Does it increase or decrease down the group.How to recognise it? |
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Answer» atomic size? Atomic size is the distance between a nucleus of an atom and it's valence or OUTERMOST shell .Atomic size is a very important CHARACTERISTIC of an atom to understand the reactivity .On this property all other properties can be figure out .Does it increase or decrease down the group.From right to left across a period, metallic character increasesbecause the ATTRACTION between valence electron and the nucleus isweaker, enabling an EASIER loss of electrons. Metallic characterincreases as you move down a group because the atomic size is increasing. |
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