For each of the following, predict the products IN WORDS ONLY

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.

Its the second one nonmetals are moldable and easily shaped 

Answer; carbon monoxide (co);