Teams of scientists work together to explore space. which achievement did not involve chemists? a. determining the composition of moon rocks b. calculating the distance between objects in the solar system c. identifying regions of mars that once held water d. identifying helium as a gas on the sun’s surface

a graduated cylinder.

explanation:

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.