What are the periods on the Periodic Table?
The periods on the Periodic Table are the rows that run left to right. Elements in the same period have the same number of electron shells.
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Basically, periods are just the rows on the Periodic Table.
I remember when I first learned this in high school: periods are the horizontal rows, and they show how many electron shells the elements in that row have. Super handy for predicting behavior!
Periods are the horizontal rows on the Periodic Table. Each period signifies the number of electron shells an element's atoms have.
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