Azimuthal Quantum number was given by
A. Lande
B. Bohr
C. Zeemann
D. Sommer field
1 Answers
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The set of principal (n), .azimuthal (l) and magnetic `(m_(1))` quantum number that is not allowed for the electron in H-atom is
Correct Answer - D n is always greater than l and m = - l……….0 ………..+l If n = 2, then l = 0, 1 and `m_(l) = 0, { -1,...
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Consider the following complex `[Co(NH_(3))_(5)CO_(3)]ClO_(4)` The coordination number, oxidation number number of d-electrons and number of unpaired
Correct Answer - A `[Co(NH_(3))_(5)CO_(3)]ClO_(4)` C.N. of Co = 6 , O.S. of `Co^(2+) is +3` It contain `Co^(3+)` as the centrl metal ion Co(Z = 27 ) : `[Ar^(18)]4s^(2)3d^(7)` `Co^(3+)...
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Hydrogen atom is exited from ground state to another state with principal quantum number equal to `4` Then the number of spectral line in the emission
Correct Answer - A Number of lines `.^(3)C_(2)=.^(4)C_(2)=((4)(3))/(2)=6`
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If an electron has spin quantum number value is `+ (1)/(2)` and magnetic quantum number value is `-1`, then it cannot be present in
Correct Answer - D for s orbital `m = 0` as `l = 0`
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Instead of principal quantum number (n), azimuthal quantum number `(l)` & magnetic quantum number (m), a set of new quantum number s, t & u was introd
Correct Answer - B `{:(s = 1,t = 0,u = - (1)/(2)","(1)/(2),),(s = 2,t = 0,u = - (1)/(2)","(1)/(2),),(,t = 3,u = - 2"," -1"," 0","+1","+2 ,),(s = 3,t = 0,u...
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If elements with principal quantum number `ngt 4` were not allowed in nature, the number of possible elements would be:
Correct Answer - B If all the elements having `ngt4` are removed the number of elements that will be present in the periodic table are calculated as n=1 represents K shell...
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Instead of principle quantum number (n), azimuthal quantum number (L) &magnetic quantum number m, a set of new quantum number s, t & u was introduce w
Correct Answer - B S=1 t=0 `u=-1/2,1/2` No of subshell=1 , No of orbital=2 No of electrons =8 S=2 t=0,3 `u=-1/2,1/2`(for t=0) u=-2,-1,0,+1,+2(for t=3) No of subshell=2, No of orbital=7 No...
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Instead of principle quantum number (n), azimuthal quantum number (L) &magnetic quqntum number m, a set of new quantum number s, t & u was introduce w
Correct Answer - C S=1 t=0 `u=-1/2,1/2` No of subshell=1 , No of orbital=2 No of electrons =8 S=2 t=0,3 `u=-1/2,1/2`(for t=0) u=-2,-1,0,+1,+2(for t=3) No of subshell=2, No of orbital=7 No...
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An electron has a spin quantum number `+1(1)/(2)` and a magnetic quantum number -1. It cannot be present in
Correct Answer - D (d) Spatial orientation of the orbital with respect to standard set of cordinate axis. Magnetic quantum number -1 is possible only when the azimuthal quantum number have...
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The total number of electrons that can be accommodated in all the orbitals having principal quantum number 2 and azimuthal quantum number 1 are
Correct Answer - C (c) When n=2 and l=1, then subshell is 2p. The number of orbitals in p-subshell `=(2l+1)=(2xx1+1)` `3` Total (maximum) number of electrons `2xx`numberof orbitals `=2xx3` = 6...
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