Potassium trioxonitrate (V) can be obtained from its solution by----------

An element, Q, contains 69% of\(^{63}\)Q and 31% of \(^{65}\)Q. What is the relative atomic mass of Q?

The following ions have the same electron configuration except 

\(_{8}\)O, \(_{12}\)Mg, \(_{13}\)AI, \(_{17}\)CI

The region around the nucleus where electrons can be located is called?

Protons and electrons are called fundamental particles because they----------