Question

. The atomic numbers of four elements A, B, C and D are 6,11,15 and 17 respectively which two elements can combine to form a ionic compound.

Answer 1

Answer:

The atomic numbers of four elements A, B, C, and D are 6,8,10, and 12 respectively. The two elements which can react to form ionic bonds (or ionic compounds) are B (8= 2,6) and D (12 =2,8,2). So D donates its two electrons to B to fulfill their octet.