Question

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How does the atomic radius change as you go from left to right in a period?

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Answer 1

Answer:

The atomic radius of atoms generally decreases from left to right across a period. Within a period, protons are added to the nucleus as electrons are being added to the same principal energy level. These electrons are gradually pulled closer to the nucleus because of its increased positive charge.

Answer 2

Explanation:

it happens because of strength of attraction of nucleus increase changes left to right