The element having outer electronic configuration (n-1)d²ns² for n = 4 belong to ………….. of the periodic table

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group 4, period 3

group 12, period 4

group 4, period 4

group 3, period 3

answer is C.

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Detailed Solution

The given element belongs to fourth period (n = 4). It is a d-block element because the d subshell is incomplete.
∴ Number of group= 2 + number of (n - 1) d electrons
=2+2=4
Thus, the element belongs to 4th period and group 4. It is titanium.

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