3) Which element has the least metallic character?* A) sodium (Na)
B) beryllium (Be)
C) potassium (K)
D) magnesium (Mg)

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.

the answer is symmetrical : )