1.

An atom of an element has nine electrons with l=0 value 18 electrons with l=1 value and 10 electrons with l=2 value . Calculate the atomic nuber of the element

Answer»

37
41
38
39

Solution : l=0 corresponds to's'subshell, l = 1 corresponds to'p'subshell, 1 = 2 corresponds to'd'subshell. The ATOM should possess'9''s'electrons, 18'p'electrons and 10'd' electrons. The electronic CONFIGURATION of the element should be `1s^2` `2s^2` `2p^6` `3s^2` `3p^6` `3d^(10)` `4s^2``4p^6` `5s^2`.The atomic number of the element should be 37.


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