Chemistry, asked by ramdayalmali112, 5 months ago

Describe the important features of the long form of the periodic table ​

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Answered by smaryie242009
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Answer:

Main Features of the Long Form of the Periodic Table : (1) It shows arrangement of elements based on modern periodic law. (2) There are 18 vertical columns known as groups. (3) There are 7 horizontal rows known as periods.

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