Question

explain how electrons diveded into spdf blocks in periodic table​

Answer 1

Elements in the long form of periodic table have been divided into four blocks i.e. s ,p ,d and f. This division is based upon the name of the orbitals which receives the last electron.

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Answer 2

Answer:

elements in the long form of periodic table have been divide into four blocks

I.e. :- s,p,d and f this division is based upon the name of the orbitals which receives the last electron . the last electron enters the s orbital of their respective outermost.