What is the atomic number of the following element??

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Based on its chemical properties, identify the position of each chemical family on the periodic table.