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defon
3 years ago
11

Horizontal rows are called

Chemistry
2 answers:
klio [65]3 years ago
5 0
In math it’s just horizontal in science it’s periods
alexgriva [62]3 years ago
4 0

The horizontal rows on the periodic table are called periods.

The vertical rows are called groups or families.

The elements are also color coded. The color they are part of is called their class.

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