The long form of the periodic table consists of seven horizontal rows and eighteen vertical columns.

True

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False

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Solution

The correct option is A True
The long form of the periodic table has 118 elements.
To accommodate 118 elements, it has seven horizontal rows and eighteen vertical columns.
Horizontal rows are called periods.
Vertical columns are called groups.
Therefore, the given statement
“ The long form of the periodic table consists of seven horizontal rows and eighteen vertical columns ” is True.

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Similar questions

Which of the following statement about the modern periodic table is correct?

(a) It has 18 horizontal rows known as periods. (b) It has 7 vertical columns known as periods.

The periodic table consists of eighteen groups and seven rows.

What are the horizontal rows and vertical columns in a periodic table known as?

What are horizontal rows and vertical columns in a Mendeleev's periodic table known as?

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