La belongs to group 3 while Hg belongs to group 12 and both belong to period 6 of the periodic table. Write down the general outer electronic configuration of the ten elements from La to Hg together using orbital notation method.

Write the outer electronic configuration of the following using orbital notation method. Justify. Po (belongs to period 6 and group 16)

Write the outer electronic configuration of the following using orbital notation method. Justify. Ge (belongs to period 4 and group 14)

Write the outer electronic configuration of the following using orbital notation method. Justify. Cu (belongs to period 4 and group 11)

Answer the following questions: Write the answers of the questions with reference to the structural of the periodic table. Draw the electronic configuration of the second row of elements of first group in the periodic table.

By referring to the modern periodic table, find out the group to which the above elements belong.

Two elements X and Y have atomic number 12 and 16 respectively.Write the electronic configuration for these elements.To which period of the Modern periodic table do these two elements belong?

Answer the following questions in one word : To which group in the periodic table does the element carbon belong? Write down the electronic configuration of carbon and deduce the valency of carbon.

On going through the Modern periodic table (fig2.1) it is seen that the elements Li,Be,B,C,N,O,F and Ne belong to the period -2. Write down the electronic configuration.

On going through the Modern periodic table (fig. 2.1) it is seen that the elements Li,Be,B,C,N,O,F and Ne belong to the period - 2. Write down the electronic configuration. Is the number of shells the same in these?

On going through the Modern periodic table (fig. 2.1) it is seen that the elements Li,Be,B,C,N,O,F and Ne belong to the period - 2. Write down the electronic configuration. Is the number of valence electrons same for all these elements ?