An atom of some element has electronic configuration 2,8,6.

(i) What is the atomic number of this element?


(ii) Name the element that shows chemical similarity with it.

The electronic configuration tells about the number of electrons present in different shells. Thus total electrons can be found by adding the electrons present in all shells i.e. 2+8+6=16. The number of electrons and protons are equal. Therefore, atomic number is 16.

(ii) The element with atomic number(Z)=16 is sulphur. The other element which show chemical similarity with sulphur is oxygen.


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