Question

(g) Elements A, B, C, D and E have atomic numbers 2, 9, 12, 15 and 19 respectively. Write
the alphabet of the element which best suits the description given below

[5]

(i) The element which has 4 shells in its atom.
(ii) A very stable, non – reactive element.
(iii) A highly electronegative non – metal.
(iv) The element which belongs to group V A.
(v) A divalent metal.

Answer 1

Elements A, B, C, D and E have atomic numbers 2, 9, 12, 15 and 19 respectively. Write

the alphabet of the element which best suits the description given below

Explanation:

iii) A highly electronegative non – metal.