Question

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

Answer 1

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

Answer 2

Answer:

D is the correct answer i hope this is correct