Which of the given statement (s) is/are false.
(I) Orbital angular momentum of the electron having n = 5 and having value of the azimuthal quantum number as lowest for this principle quantum number is 
.
(II) If n = 3, λ = 0, m = 0, for the last valence shell electron, then the possible atomic number must be 12 or 13.
(III) Total spin of electrons for the atom 25 Mn is ± 
.
(IV) Spin magnetic moment of inert gas is 0
Text Solution
Verified by ExpertsA
I: For n = 5, l min = 0.
∴ Orbital angular momentum = 
= 0.(False)
II: Outermost electronic configuration = 3s 1 or 3s 2 .
∴ possible atomic number = 11 or 12 (False).
III: Mn 25 = [Ar] 3d 5 4s 2 .
∴ 5 unpaired electrons.
∴ Total spin = ± 
(False).
IV: Inert gases have no unpaired electrons.
∴ spin magnetic moment = 0 (True).
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