what is a period on the periodic table

The horizontal rows of the periodic table are known as the Periods.

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There is a total of seven different periods in the periodic table.

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They are represented by the total number of outer electrons and have the same number of electron shells.

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All the periods show the successive filling of the orbitals in the valence shell and the longest period shows the feeling of the d subshell orbitals.

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The longest periods of the periodic table are Period 6 and Period 7.

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The elements of the same period indicate about the same energy levels.

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Thank You!

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