Q15 of 22 Page 174

i. An electron in an atom has the following set of four quantum numbers to which orbital it belong to:


ii. Write the four quantum numbers for 1s' electron.

(i) l = 0 means s sub shell, n = 2 means second principle shell.


So, its orbital lies in 2s (the one and only orbital in s subshell) with m = 0


(ii) n = 1, l = 0, ml = 0 , mb = + 1/2


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