Question

What is meant by periodicity ? How do the following properties change in a group and period explain . a) Atomic radius b) Electron affinity c) Ionisation energy d) electro negativity e) Valency


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Answer 1

Answer:

the periodic table, periodicity refers to trends or recurring variations in element properties with increasing atomic number.

Explanation:

This is called periodic property. a) Atomic radius: The distance between the nucleus and outermost orbitals called as atomic radius. Group : Atomic radii increases from top to bottom in a group, the atomic number of the element increases. Period : Atomic radii of elements decrease across period from left to right.

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Answer 2

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