Atoms of seven elements A, B, C, D, E, F and G have

a different number of electronic shells but have the

same number of electrons in their outermost shells.

The elements A and C combine with chlorine to form

an acdi and common salt respectively. The oxide of

element A is a liquid at room temperature and is a

neutral substance, while the oxides of the remaining

six elements are basic in nature. Based on the above

information answer the following questions.

i. What could the element A be ?

ii. Will elements A to G belong to the same period

or same group of the periodic table ?

iii. Write the formula of the compound formed by the

reaction of element A with oxygen.

iv. Show the formation of the compound by a

combination of element C with chlorine with the

help of an electronic structure.

v. Which one of the given elements is likely to have

the smallest atomic radius ?​