PLZ HELP ITS FOR A TEST What are the rows called?

What is the octet rule?

What are the columns called?

Why do atoms bond

1.the rows are called periods

2.The octet rule states that atoms below atomic number 20 tend to combine so that they each have eight electrons in their valence shells, which gives them the same electronic configuration as a noble gas.

3.The columns are called groups

Explanation:

Hope this helps

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