What is a Period in a Periodic Table?
It's one of the rows that run from left to right. Elements in the same period have the same number of electron shells.
Play Games.Earn points.Get gift cards!
Playback Rewards
(13.7k)
500k players and counting...
More Answers
A period in the periodic table is a horizontal row of elements. As you move from left to right, the atomic number increases.
I learned this in school: periods are the rows, and they indicate the number of electron energy levels in the atoms of those elements.
Think of it like this: periods are the horizontal lines, and each one tells you how many layers an element's electron cloud has.
The brands referenced on this page are not sponsors of the rewards or otherwise affiliated with this company. The logos and other identifying marks attached are trademarks of and owned by each represented company and/or its affiliates. Please visit each company's website for additional terms and conditions.
People also want to know
Add an Answer