Answer:
Bohr model A
Explanation:
It has more valance electrons therefore has more interaction between the atoms and has more electronegativity.
<span> POCl3 is the correct way to write the chemical formula for this compound</span>
Astatine. Because it has the smaller shell of electrons. I believe
Polair molecule, because the oxygen is slightly more negative than the two hydrogen atoms. Making water slightly negative. Due to the fact oxygen holds the to valence electrons more than the two hydrogen atoms do.
So, I don't know the answer for b but I think I found the answer for a.
I sincerely hope this isn't wrong