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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesModern Periodic Table

The element having electronic configuration [Kr] 4d10, 4f14, 5s2, 5p6, 5d4, 6s2 belongs to

A.s – block
B.p – block
C.d – block✓ Correct
D.f – block
Explanation

The given electronic configuration is- 10 14 2 6 4 2 [ ]4 4 5 5 5 6 Kr d f s p d s As we can see in the given electronic configuration, each orbital is completely filled except the d-orbital. The outermost electrons enter in the 5d subshell and varying from 1 to 10 in the d-orbital. Thus, the element exists in the d-block and is the transition element. Thus, the correct option is (c) d-block.

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