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 acid and common salt respectively. The oxide of element A is 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 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 the element A with oxygen.

(iv) Show the formation of the compound by a combination of element C with chlorine with the help of electronic structure.

(v) What would be the ratio of number of combining atoms in a compound formed by the combination of element A with carbon?

(vi) Which one of the given elements is likely to have the smallest atomic radius?