Use the drop-down menus to select the names of the labeled structures.

A: B: C:

The answers is a nuclear changes

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.

Answers are 1,2,4 its correct on edgenuity.