List of alternative nonmetal classes
Non metallic elements / From Wikipedia, the free encyclopedia
In chemistry, after nonmetallic elements such as silicon, chlorine, and helium are classed as either metalloids, halogens, or noble gases, the remaining unclassified nonmetallic elements are hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur and selenium.
Metalloid | Unclassified nonmetal |
Nonmetal halogen |
Noble gas |
B, Si, Ge, As, Sb, Te, Po, At | H, C, N, P, O, S, Se | F, Cl, Br, I | He, Ne, Ar, Kr, Xe, Rn |
Boron is an example of a metalloid |
Oxygen in liquid form |
Bromine | A krypton-filled discharge tube glowing white |
The nonmetallic elements are sometimes instead divided into two to seven alternative classes or sets according to, for example, electronegativity; the relative homogeneity of the halogens; molecular structure; the peculiar nature of hydrogen; the corrosive nature of oxygen and the halogens; their respective groups; and variations thereupon.