Consider the general valence electron configuration of ns2np…

Consider the general valence electron configuration of ns2np5 and the following statements:(i)Elements with this electron configuration are expected to form -1 anions.(ii)Elements with this electron configuration are expected to have large ​positive electron affinities.(iii)Elements with this electron configuration are nonmetals.(iv)Elements with this electron configuration form acidic oxides.Which statements are true?