The electronic structure of four elements A, B, C, D are:
(a) 1s²
(b) 1s², 2s² 2p²
(c) 1s², 2s², 2p⁵
(d) 1s², 2s², 2p⁶
The tendency to form an electrovalent bond is largest in:
a) A
b) B
c) C
d) D