Atoms containing radioactive nuclei are called . radioisophores radioisotopes nuclides nucleons radionuclides

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

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

What is the lowest number energy level where a d sublevel is found