How many moles of nitrogen atoms and hydrogen atoms are present in 1.4 moles of (NH4)3PO4? mol of N atoms and mol of H atoms

It has to be b i hope this

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.

In any atom of any element, you will find protons and neutrons in the nucleus of any atom 

H tricky one let me think and get back to u