Hydrazine, n2h4, is a colorless, oily liquid that fumes in air and has an odor much like that of ammonia. it is used as a rocket fuel. the order of its atoms is h2nnh2. how many unshared pairs of electrons are on each nitrogen atom?

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.