A. An element with the valence electron configuration 4s2 would form a monatomic ion with a charge of . In order to form this ion, the element will (lose/gain) (#) electron(s) from/into the subshell(s). B. An element with the valence electron configuration 2s^2 2p^4 would form a monatomic ion with a charge of . In order to form this ion, the element will (lose/gain) # electron(s) from/into the subshell(s).

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization. a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution. part bcalculate the percent ionization of ha in a 0.010 m solution