BIOL 151 Study Guide - Octet Rule, Ionic Bonding, Covalent Bond
Document Summary
The electrons in the outermost shell determine the bonding. the # of electrons in the outermost shell determines the element"s chemical properties (stable or reactive). If it isn"t full, it isn"t stable. Atoms want to fill the outershell. it"s not a comfortable state to exist with missing outershell electrons. (it"s not really missing, it"s incomplete. The octet rule: the outer e- shell is complete when it contains 8 e-, except for h & he; the outer shell of h & he is complete with 2 e- Read on ionic bond, covalent bond, hydrogen bond & water. (chapter 2) Electrons in the outermost shell have the most energy. If the outershell is full, it"s chemically inert. It"s incredibly hard to get it to react. If the outershell isn"t filled, the atom is chemically reactive. A molecule is we call two or more atoms that result from a covalent bond(s) Ionic & covalent bonds are far more prevalent than hydrogen bonds.
