23.Which of these isoelectronic species has the smallest radius?
(a) Br- (b) Sr+2+
(c) Rb+ (d) Se-2-
(e) They are all the same size because they have the same number of electrons.
ليه الجواب كذا انا اتوقع dلانو اقل بالحجم الذري
ولو كان الجواب صح احد يشرحلي ليه
