What are the horizontal (from left to right) parts of the periodic table called?

Chemistry

2 answers:

Setler [38]4 years ago

8 0

Answer:

The correct answer is periods. See the explanation below, please.

Explanation:

The horizontal lines in the periodic table are called periods (ranging from 1 to 7) and vertical lines (ranging from 1 to 18).

The period that an element belongs to coincides with the last electronic layer of the element (that compound in period 3 will have 2 electronic layers).

sergey [27]4 years ago

7 0

It would be periods because they are also known as rows=Principal Energy Levels that hold electrons

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