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Eddie12go
Answered

The trends in density in the 4th through 7th periods,It is ___________from left to the middle and then __________from middle to the right.​

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Christian3177go

Answer:

In this instance, density peaks in the middle of the period. With regards to the 4th through 7th periods, it increases from left to the middle, and then decreases (more rapidly) from the middle to the right.

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