aa 3- ion forms.bthe result is a configuration of 1s2 2s2 2p6.cthe noble gas configuration of argon is achieved.dthe atom gains five electrons.enone of the above
B? not sure though it usually loses three electrons to form the +3 charge and it doesn't gain 5if it did it would be a 5- chargebut things don't react so they gain 5! for B it would have the configuration of neon which is in the row above so it would have lost 3 election if it reacted to gain a nobel gas configuration
