Plz I will vote brianlist

I really knew the answer but I'm stuck at mole concept

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.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.