R R Misra Solutions for Chapter: Structure of Atom, Exercise 2: Problems for Proficiency

Write the name of the shell which is closest to the nucleus of the atom. (L shell / M shell / K shell)

Which shell is associated with the lowest energy and which one is associated with the highest energy in K, L, M, and N-shells? 

Calculate the maximum number of electrons ($2{\mathrm{n}}^2$) which can be accommodated in (i) K (ii) L, (iii) M, and (iv) N-shells. 

Write the similarities in electronic configurations of the following pairs: 
(i) Ne and Ar 
(ii) Li and Na 
(iii) Be and Mg 

Write the electronic configuration of an element whose atomic number is 10.

Select the elements which have 7 electrons in their outermost shells. 

Write the electronic configuration of each element represented by symbols A, B, C and D in the following table. 

State which of A, B, C and D represent: (i) metal, (ii) non-metal and (iii) noble gas

Complete the following table of elements A, B, C and D where, B represents neon.