11th Class Chemistry Classification of Elements and Periodicity in Properties

  • question_answer 15) In terms of period and group where would you locate the element with Z = 114?


    The last member of the sixth period is the element radon with atomic number 86. Therefore, the element with atomic number 114 belongs to 7th period. In 7th period \[7s,5f,6d\] and op-orbitals are filled. \[7s,\text{ }5f\]and \[6d\]-orbitals filling correspond to 26 elements, i.e., the end member will be with atomic number 112. It means the element in question is a second \[6p\]-element, i.e., it belongs to group (10 + 4) = 14.

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