Asubstance in the solid phase (state) of matter has a. a definite shape and a definite volume b. a definite shape, but no definite volume c. no definite shape, but a definite volume d. no definite shape and no definite volume

Solids have a definite shape and definite volume. This means that the shape of the material does not change, and it can't be compressed.

m=9

step-by-step 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.