The diagram given below shows the position of elements in a portion of the periodic table. Ionic compound is formed between ………. and ………
IA IIA IIIA IVA VA VIA VIIA VIIIA
D B
C E A

A and B
B and E
C and D
D and E
"

Correct answer: (d) D and E

Explanation: Elements in group IIA is most electropositive among given elements while E being in group VIIA is most electronegative among the given elements. Hence, both of these will form ionic compounds, more readily than the other given elements.