[" 2.1) On going through the modern periodic table it is seen that the elements Li,Be,"],[B,C,N,O,F" and Ne belong to the period - "2" .Write down electronic configuration of "],[" all of them."]

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 ?

If you look at the long form of the Periodic Table, you will find that the elements Li, Be, B,C,N,O,F and Ne are present in the second period. Write down their electronic configuration.

If you look at the long form of the Periodic Table, you will find that the elements Li, Be, B, C, N, O, F, and Ne are present in the second period. Write down their electronic configuration .

An element which belongs to third period and group 16 in the periodic table has electronic configuration

Answer the following questions: The elements in the second period :Li, Be, B,C,N,O,F and Ne have electrons in the two shells K and L . Write down the electronic configuration of these elements.