Electronic configuration of four elements A, B ,C and D are given below
A) 1s²,2s²,2p⁶
B) 1s²,2s²,2p⁴
C) 1s²,2s²,2p⁶,3s¹
D) 1s²,2s²,2p⁵
Which of the following is the correct order of increasing tendency to gain electron?
A. AB. AC. DD. D