Question

explain how the following properties vary in their groups and periods A) atomic radius B) metallic nature​

Answer 1

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metallic nature

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Answer 2

Answer:

atomic radius :

in groups - increases top to bottom

in periods - decreases from left to right

metallic nature :

in groups - increases from top to bottom

in periods - decreases from left to right

Explanation:

periodic properties depend on shielding effect, atomic size, nuclear charge, etc,.