Which of the following is a possible set of quantum numbers for an electron? (1, 1, 0, +½) (2, 1, 1, +½) (3, 2, 3, -½) (3, -1, 0, -½)

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.