alkali metals is an element which is soft and reactive metal.
alkali metals is an element which is soft and reactive metal.
an element which is soft and reactive metal?
alkali metals
section::::elements.









































section::::elements.:sodium.









































"sodium" (symbol na) is a soft, silvery-white, highly reactive metal and is a member of the alkali metals; its only stable isotope is na. it is an abundant element that exists in numerous minerals such as feldspars, sodalite and rock salt. many salts of sodium are highly soluble in water and are thus present in significant quantities in the earth's bodies of water, most abundantly in the oceans as sodium chloride.









































many sodium compounds are useful, such as sodium hydroxide (lye) for soapmaking, and sodium chloride for use as a deicing agent and a nutrient.
period 3 element
although it is the least reactive metal catalyst for epoxidations, vanadium is highly selective for alkenes with allylic alcohols. early work done by sharpless shows its preference for reacting with alkenes with allylic alcohols over more substituted electron dense alkenes. in this case, vanadium showed reverse regioselectivity from both m-cpba and the more reactive molybdenum species. although vanadium is generally less reactive than other metal complexes, in the presence of allylic alcohols, the rate of the reaction is accelerated beyond that of molybdenum, the most reactive metal for epoxidations.









































section::::see also.









































bullet::::- asymmetric catalytic oxidation









































bullet::::- juliá–colonna epoxidation









































section::::external links.
sharpless epoxidation