Nope, not at all. In astrophysics, "metal" refers to any element heavier than helium, regardless of oxidation state. It is a useful definition, because only h

Nope, not at all. In astrophysics, "metal" refers to any element heavier than helium, regardless of oxidation state. It is a useful definition, because only hydrogen and helium were present from the big bang. The metallicity of a star then determines the age of the nebula that formed it. More metals (in the astrophysical sense) means that other stars had to exist, make heavier elements, and explode prior to that stars birth. It's a different definition, but it is quite useful in the field.