Question

आवर्त सारणी की एक विशेषता लिखिए​

Answer 1

Answer:

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Answer 2

Explanation:

Silent features of modern periodic Tables -

This table has Eighteen veritcal columns Called goups of families.

2.The groups are IA toVILA, IT to VIIB , VIII (three columns) and zero group. According to latest recommendations of the International Union and pure Applied Chemistry (I.P.U.A.C), The groups are numbered 1-8.

3.The group number is assigned to an element depending Upon the number of the valence electrons.

4.Elements Included to the same group Of the periodic table have similar Outer electronic configuration and consitute a family Of chemically similar elements.

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