The "Atomic Number" is another way to refer to: a the number of atomic mass units b the number of neutrons c the number of electrons d the number of protons

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.

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.

The answer is d for this question

Ithink ur answer would be c hope u have a good day: )