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Question 1 - Past Year - 1 Mark Questions - Chapter 5 Class 10 - Periodic Classification of Elements (Term 2)

Last updated at May 3, 2022 by

How many horizontal rows are present in modern periodic table. What are they called?

 

Answer

In the modern periodic table, there are 7 horizontal rows and these are called periods .

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo