Which is the best reason that the atomic radius generally increases as you go down in each group of elements?
- The nuclear charge increases
-The number of neutrons increases.
- The number of energy level increases
- A new octet forms

The number of energy level increases

Explanation:

As you down the a periodic group, the atomic radius increases because there is an increase in the energy levels. This increase is evident by the addition of subsequence electronic shell down the group.

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

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