Atom of seven elementsA,B ,C, D, E,F and G have a differentnumber of electronic shells but havethe same number of electrons in their outermostshells.The element A and C combine with chlorine to form an acidand common salt respectively. The oxide of element A is liquidat room temperatureand is a neutral substancewhile the oxides of theremainingsix elements are basic in nature . Based on the above information, anwerthe followingquestion given ahead : Will element A to G belongto the same period or same group of the periodictable ?

Atom of seven elementsA,B ,C, D, E,F and G have a differentnumber of e

1.	Atom of seven elementsA,B ,C, D, E,F and G have a differentnumber of electronic shells but havethe same number of electrons in their outermostshells.The element A and C combine with chlorine to form an acidand common salt respectively. The oxide of element A is liquidat room temperatureand is a neutral substancewhile the oxides of theremainingsix elements are basic in nature . Based on the above information, anwerthe followingquestion given ahead : Will element A to G belongto the same period or same group of the periodictable ?
Answer» SOLUTION :Since all the seven elementshave same number of electron in their OUTERMOSTSHELLS, this meansthat they belongto the same group. From the availableinformation , it becomesclear that the group of alkali metals ( group 1 ) . Hydrogen (A) is also included. The elements presentare : Let us answerthe QUESTION ASKED . The element A' to G' belongto the same group and not same period .