Dullness is a physical property.
They are shiny!
Helium is neither shiny nor dull; it is translucent (transparent; colorless). Helium is a colorless gas
They generally look metallic but are brittle (not malleable or ductile). Neither good conductors or insulators but they are semiconductors.
Intrinsic refers to the doping -- intrinsic semiconductors are not doped. Whether compound or not, if they are not doped they are intrinsic.
a nonmetal because a metal is shiny and strong so a nonmetal is brittle and dull
semiconductors
cake and ice cream
Non-metals are dull (or they are not shiny as metals).
a nonmetal because a metal is shiny and strong so a nonmetal is brittle and dull
Insulators are conductors
poor dry skin, dull brittle hair, brittle nails, pale
Arsenic is shiny,gray,brittle metallic looking solid.The dull coating is made of arsenic oxides.
Dullness is a physical property.
They are shiny!
almost every non-metal is like that
Helium is neither shiny nor dull; it is translucent (transparent; colorless). Helium is a colorless gas