IMED1002 Study Guide - Final Guide: Covalent Bond, Hydrogen Bond, Bond Energy
Document Summary
Outer e- rearrange to reduce potential energy. Which is at a minimum when the atoms are a specific distance apart. = bond length (distance between the two nuclei) O the sharing of e- in outer shell . Gives both atoms a full outer shell. Pairing o the h2 molecule formed by: the atoms sharing the pair of e-. o can have a pair of atoms sharing more than one pair of e- forming 2 or 3 covalent bonds. Eg molecular oxygen, o2. o double bond o=o o when e- pair is shared by atoms of same element. O h end +ve o end ve. Polar molecules form h bonds with similar molecules. O +ve charge in h nucleus strongly attracted to -ve charge of lone pair of e- on atoms of surrounding molecules (eg o) H bonds also form with other electronegative elements.
