[TBQ.VI.(2)]
What are groups and periods in the modern periodic table?

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Solution

The horizontal rows are called periods. There are seven periods in the periodic table.

Vertical columns in the periodic table starting from top to bottom are called groups. There are 18 groups in the periodic table.

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Similar questions

In the modified Mendeleev’s periodic table,________ groups and ________ periods are present, whereas in modern periodic table,_____ groups and _____ periods are present.

Q. There are _____ periods and _____ groups respectively in the modern periodic table.

(a) State the modern periodic law.

(b) How many periods and groups are there in the modern periodic table?

Q. [TBQ.VI.(4)]
State any five features of modern periodic table.

Q. Solve this:
Q. (d) State the modern periodic law. How many groups and periods are present in modern periodic table ?

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[TBQ.VI.(2)] What are groups and periods in the modern periodic table?

The horizontal rows are called periods. There are seven periods in the periodic table. Vertical columns in the periodic table starting from top to bottom are called groups. There are 18 groups in the periodic table.

[TBQ.VI.(2)]
What are groups and periods in the modern periodic table?

The horizontal rows are called periods. There are seven periods in the periodic table.

Vertical columns in the periodic table starting from top to bottom are called groups. There are 18 groups in the periodic table.