carbon is a metal nonmetal or a metalloid that is semimetal.
carbon is a metal nonmetal or a metalloid that is semimetal.
is carbon a metal nonmetal or a metalloid?
semimetal
Na
Na
oxygen, sulfur, and selenium are nonmetals, and tellurium is a metalloid, meaning that its chemical properties are between those of a metal and those of a nonmetal. it is not certain whether polonium is a metal or a metalloid. some sources refer to polonium as a metalloid, although it has some metallic properties. also, some allotropes of selenium display characteristics of a metalloid, even though selenium is usually considered a nonmetal. even though oxygen is a chalcogen, its chemical properties are different from those of other chalcogens. one reason for this is that the heavier chalcogens have vacant d-orbitals. oxygen's electronegativity is also much higher than those of the other chalcogens. this makes oxygen's electric polarizability several times lower than those of the other chalcogens.
chalcogen