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in Chemistry by (62.1k points)
information :
(a) prinicipal qunatum no n is defined as 1,2,3,………..
(b) Azimuthal quantum no .l hdefind as 1 to n +2 in integral steps .
(c ) magntic quantum no m is defind as `-(1)/(2) "to " +(1)/(2) ` (including zero oif any , in in intergral steps).
(d) spin quntum no s has six possible values `(-2,-1,-(1)/(2),+(1)/(2),+1,+2)`.
(e ) the subshell corresponding to l=1,2,3,4,5............... designeted as F,GltH,I,J,K.... respectively ,
(f) the values of m for given values of l give the number of orbitals in a sub-shell .
(g) the prionciple for filling of `E^(-)` in the shells remins unchanged .
the 2 nd period would begin with :
A. Ga
B. As
C. Cs
D. Sc

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1 Answer

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by (61.5k points)
Correct Answer - a
`1F ^(12) ,1G ^(18),2F^(1)`

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