A rock is placed on a scale and gives a reading of 61.13 grams. The rock is then placed in a graduated cylinder with 57.53 mL of water, the water rises to a volume of 73.54mL.

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.