Please please please help me

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

What is the independent variable in this investigation? mass volume sample number substance density