Chemical Bond

3. positively charged particles in the nucleus of the atom
5. shape of the molecule water, H2O
7. a theory used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms.
8. A chemical bond resulting from the attraction between oppositely charged ions (5,4)
11. a covalent bond formed by 'sideways' overlap of p and p orbitals (2,4)
12. describing atoms or molecules having fewer than the number of electrons required for maximum stability (8,9)
13. pair of electrons in the outer shell of an atom not involved in bonding(4,4)
15. a bond formed by sharing three pairs of electons (6,8,4)
17. the smallest part of an element
18. the shape with bond angle 180 degrees

1. an atom shares more than eight electrons with its bonding atom (8,5)
2. A positively charged ion)
4. shape of the molecule of phosphorus pentafluoride, PF5 (8,11)
6. the power of a particular atom that is covalently bonded to another atom to attract the bonding pairof electrons toward itself
9. a negatively charged ion
10. ionic bond results in strong ... attraction between ions
14. the distance between the nuclei of two covalently bonded atoms (4,6)
16. shape of the molecule sulfur hexafluoride, SF6