Question
Assign the position of the element having outer electronic configuration.
(n-1)dns2 for n=4,

Answer

Since n = 4, the element belongs to the 4th period. It is a d–block element as d–orbital’s are incompletely filled.
There are 2 electrons in the d–orbital.
Thus, the corresponding group of the element
= Number of s–block groups + number of d–block groups
= 2 + 2
= 4
Therefore, it is a 4th period and 4th group element. Hence, the element is Titanium.

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