There are two rows of inner-transition elements in the periodic table each containing 14…
Chemistry · Class 11 · CBSE — Classification of Elements and Periodicity in Properties
There are two rows of inner-transition elements in the periodic table each containing 14 elements. The reason for this may be
- f-orbital has seven values for magnetic quantum number, hence total electrons are 14
- in the periodic table there is space to accommodate 14 electrons only
- only 28 inner-transition elements have been discovered till date
- 28 is the maximum number of elements that any block can accommodate.
Answer
(A) f -orbital has seven values for magnetic quantum number, hence total electrons are 14
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