What do the horizontal lines represent in periodic table?

Question

Chemistry

Aryan Buchanan

30 January, 22:17

What do the horizontal lines represent in periodic table?

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Answers (2)

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Skyler Adams · Answer 1

The horizontal rows in the periodic table are periods while vertical lines are called groups

Celeste Higgins · Answer 2

A horizontal row in the periodic table, which signifies the total number of electron shells in an element's atom. A vertical column in the periodic table, which signifies the number of valence shell electrons in an element's atom.