Following are the valence sheel electronic configurations of some elements. Find out the blocks to which they belong in the periodic table?
Following are the valence sheel electronic configurations of some elements.
Find out the blocks to which they belong in the periodic table?
A. `3s^(2) 3p^(5)`
B. `3d^(10) 4s^(2)`
C. `2s^(2)3p^(6) 4s^(1)`
D. `1s^(2) 2s^(2)`
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Correct Answer - B::C::D
The block of the elements depend on the type of sub-shell which receive the last electron. In case of (i) it enters in `3p`-subsheel, (ii) it enters `3d`-subshell, (iii) it enters `4s`-subshell and (iv) it enters `2s`-subshell.
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