Unlike homogeneous solutions, the particles in a colloid are [?] and [ ]
through a semi-permeable membrane.
A
B
visible
invisible

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.