Question

Heya

I am doing this Bonding Crossword, managed to crack a bunch but gotstuck with a few. Really need some help here.

1) Particle smaller than the atom ( 9 letters)
2) division of an energy level ( 8 letters )
3) # protons ( 12 letters )
4) model for molecular shape based on repulsion of electron pairs (5 letters )
5) force holding atoms together in molecules ( 14 letters )
6) unsymmetrical charge distribution ( 8 letters )
7) the properties of the elements are a periodic function of theiratomic numbers ( 11 letters )
8) the tendency of atoms to react to get 8 valence electrons ( 9letters )
9) exceptionally strong type of dipole interaction ( 15 letters)
Really appreciate answers as soon as possible, many thanks