Pure copper metal has a very high conductivity Brass, an alloy of copper and zinc, has a much lower conductivity. Why are the
conductivities different?

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

Answeramino acids;

D. h2o + h2o > h3o + oh- confirmed.