Chemistry, 17.03.2021 23:40, natebarr17

1. Take a look at all the elements in period 3. What do you notice? * 5 points
A. They have the same number of energy levels
B. The number of energy levels decreases as you go across the period from left to right
C. They have the same number of valence electrons
D. The number of valence electrons decreases as you go across the period from left to right

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1. Take a look at all the elements in period 3. What do you notice? * 5 points
A. They have t...