CHEM 103 FINAL EXAM QUESTIONS & ANSWERS VERIFIED 100% CORRECT

Lewis Structures - represents the transfer or the sharing of electrons in chemical bonds octet rule - EVERY ATOM WANTS 8 ELECTRONS IN THEIR OUTERSHELL ionic bonding - chemical bond formed through the transfer of one or more electrons from one atom or group of atoms to another group EX : NaBr metals - give nonmetals - take oxidation number - the superscript indicating the charge on an ion ion - atom with either positive or negative charge binary compound - compounds in which 2 elements are present , metal and non metal - nonmetal changes to ide ionization energy - energy required to remove the most loosley held electron from outer shell ; up and to the right polyatomic molecule - nonmetals that form one ion covalent bond - sharing of electronsEX : CO2 polyatomic ions - Ag silver ion Fe 2+ ferrous ion Fe 3+ ferric ion Cu 1+ cuprous ion Cu 2+ cupric ion binary molecule - 1st word : prefix and full name 2nd word : prefix and stem and ide mono - 1 di - 2 tri - 3 tetra - 4 penta - 5 hexa - 6 hepta - 7 octa - 8 ennea - 9deca - 10 bonding electrons - pairs of valence electrons that are shared between pairs non bonding electrons - lone pairs that are not involved in electron sharing Linus Pauling - Nobel prize Chemist electronegativity - measure of atoms attraction for electrons it shares with another atom in a chemical bond electronegativity increases - left to right electronegativity decreases - top to bottom