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Degger [83]
3 years ago
14

In the periodic table, periods are_____rows.

Biology
2 answers:
mojhsa [17]3 years ago
8 0

Answer:

The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.

Explanation:

Hope this helps! :)

Travka [436]3 years ago
5 0

Answer:

It's a row of chemical elements

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