2. Questions Bank
  3. 11th Class
  4. Chemistry
  5. Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति

11th Class Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank 11th CBSE Chemistry Classification of Elements and Periodicity in Properties

  • question_answer
    Third period has eight and not eighteen elements. Explain.

    Answer:

                    No. of elements present in a particular period correspond to the electrons in the energy shell. The third period corresponds to the third energy shell which has eight electrons. Therefore, the third period has eight elements.


You need to login to perform this action.
You will be redirected in 3 sec spinner