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nikklg [1K]
2 years ago
13

1. Take a look at all the elements in period 3. What do you notice? *

Chemistry
2 answers:
Vedmedyk [2.9K]2 years ago
5 0

Answer:

D

Explanation:

beacause all the elements in period 3 has different valence electrons hence you look at the first element in period 3 is sodium which has a valence electron of 1 when you go across the period to the right their valence electron decreases to be negative

Lelu [443]2 years ago
4 0

Answer:

D is the correct answer i hope this is correct

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