The electronic structure of four elements A, B, C, D are(a) 1s2(b)1s22s22p2(c)1s22s22p5(d) 1s22s22p6The tendency to form electrovalent bond is largest in

Element C has electronic structure 1s2,2s22p5, it requires only one electron to complete its octet and it will form anion and so it will form electrovalent bond.