Ezra's mother told her she was "moving at a snail's pace." How could Ezra determine the average speed of a snail?

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.

answer; talc and gypsum;