Order the eclipse by increasing brightness of the moon

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is

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.

B. nuclear reactions could first occur.