Question

3. Predict the position of the element in periodic table satisfying the
electronic configuration (n-1)d², ns2 where n=5​

Answer 1

Answer:

yittruum

atomic number 39 in the periodic table ..

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Answer 2

Answer:

Explanation:

Here outer most electron enters into the 3d hence the element belongs to d−block, number of group for d−block element= no. of electrons in (n-1)orbital + no. of electrons in n orbital=2+1=3 hence, the element belongs to 3rd group. Here principal quantum number is equal to the period of the element hence the element belongs to 4th period