Which one decrease down the group in periodic table A. number of shell B. metallic character C. non-metallic character D. atomic radii please help me in 5 second and i will awarded the brain list

The flowers in a flower arrangement are actually alive

It will fall off and tip over. 

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.