the size of isoelectronic species f - ne na+ is affected by

 a) Nuclear charge(Z) 

b) valence principal quantum number(n) 

c) election-election intraction in outer orbitals 

d) none of the factors because their size is the same. 

Ans:- a {Nuclear charge(Z)}

the size of isoelectronic species cl- ar and ca2+ is affected by

Ans:-The size of isoelectronic is affected by  atomic number means if we increase atomic number of isoelectronic then size is also decrease s.