is nh3 more acidic than ph3?
Owing it to the small size of nitrogen and small P orbitals it has the ability to form stronger bonds due to effective overlap. ... So Yes NH3 is more basic than PH3 as NH3 has more density of electron. ... The pKb of NH3 is 14–9.8 = 4.2. The smaller the pKb, the stronger the base, so NH3 is a stronger base than PH3.