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Murrr4er [49]
3 years ago
5

HELP I WILL MARK YOU AS THE BRAINLIEST ANSWER

Chemistry
1 answer:
borishaifa [10]3 years ago
8 0

Hey there! Here is the answer:

B.) decrease; increase

Here's why:

As you move from left to right across a period on the periodic table the size of an atom will decrease. As you move from top to bottom down a group on the periodic table the size of an atom will increase.

I really hope this answer helps you out! :)

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