Physics, asked by Parvati177, 1 year ago

How many horizontal rows are there in the modern periodic table and what are they called?​

Answers

Answered by poojachoudhary09
5

Answer:

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Explanation:

There are 7 horizontal rows in the modern periodic table. They are called periods.

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Answered by Aɾꜱɦ
1

Answer:

In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.

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