Which of the following describe metalloids? A. mostly solids, shiny, high density, conductors
B. mostly solids, dull, brittle, reactive, conductors
C. mostly gases, brittle, dull, low density, insulators
D. all solids, shiny, brittle, conductors, medium density

well in order to answer this question you have to provide more information < 3

a electronegativity decreases beacuse the size of nucleus is bigger.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.