Top Definition. white race. white race: people of european decent are all grouped together for simplicity(even though we all know of each others variations and tribes), includes skin types of thin brown, to yellow to very white(eye color and hair color has no significance).
Best Answer: There are a few easy rules. Anything with a pair of electrons is considered a nucleophile, but the question now is how to determine which one is strong vs. weak. A weak nucleophile usually does not contain a negative charge (in most cases), for example water, H2O. H2O follows an Sn1 pathway. A strong nucleophile, like Iodine, contains a negative charge (when in ionic form) and will follow and Sn2 pathway.
A nucleophile donates electrons to an electrophile. All nucleophiles are Lewis bases, but not all Lewis bases are nucleophiles. All electrophiles are Lewis acids, but not all Lewis acids are electrophiles. NUCLEOPHILES VS. LEWIS BASES. The major difference between a nucleophile and a Lewis base is that: 1  Nucleophilic behavior involves making a new bond, and is kinetic behavior. 2  A Lewis base after having donated an electron pair, involved in Bronsted-basic activity, just wants a proton and is thermodynamic behavior.