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 can be any negative ion or any neutral molecule that has at least one unshared electron pair. Nucleophile is a substance that is very electropositive, therefore, like to interact with positive centers. It can initiate reactions using the lone electron pair.For example, when a nucleophile reacts with an alkyl halide, the lone pair of the nucleophile attacks the carbon atom that bears the halogen. This carbon atom is partially positive charged due to the electronegativity difference between it and the halogen atom.or example, when a nucleophile reacts with an alkyl halide, the lone pair of the nucleophile attacks the carbon atom that bears the halogen. This carbon atom is partially positive charged due to the electronegativity difference between it and the halogen atom.