Q. 674.0( 47 Votes )

(a) How many sub-

Answer :

(a) n = 4 [Given]

For a given value of ‘n’, ‘L’ can have values from zero to [n-1].

L = 0, 1, 2, 3

Thus, four sub-shells are associated with n = 4, which are s, p, d and f.

(b) Number of orbitals in the nth shell = n2

For n = 4

Number of orbitals = 16

Each orbital has one electron with ms = -1/2

Hence there will be 16 electrons with ms = -1/2

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