In an atom the number of electrons in N-shell is equal to the number

1.	In an atom the number of electrons in N-shell is equal to the number of electrons in K, L and M shells. Answer the following questions. i) Which is the outermost shell?ii) How many electrons are there in its outermost shell?iii) What is the atomic number?v) Write the electronic configuration of the elements.
Answer» i) The outermost shell is p(n = 6). ii) Two electrons are there in outermost shell. iii) Its atomic number is 56. iv) The electronic configuration of element is 1s²2s²2p⁶3s² 3p⁶ 4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶ 6s^2.

In an atom the number of electrons in N-shell is equal to the number of electrons in K, L and M shells. Answer the following questions. i) Which is the outermost shell?ii) How many electrons are there in its outermost shell?iii) What is the atomic number?v) Write the electronic configuration of the elements.

Answer»

i) The outermost shell is p(n = 6).

ii) Two electrons are there in outermost shell.

iii) Its atomic number is 56.

iv) The electronic configuration of element is 1s²2s²2p⁶3s² 3p⁶ 4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶ 6s^2.