Answer:
A
The nuber of each one should be same
Answer:
all the elements in the same period have the same valence electrons.
1.0 mole ---------- 6.02x10²³ molecules
4.5 moles -------- ?
4.5 * 6,02x10²³ / 1.0
= 2.709x10²⁴ molecules units
Answer:
It is the third one
Explanation:
"Both atoms achieve a more stable configuration."
