21Q2 D
Q 1 ) number of radial nodes of 3s and 2p orbitals are respectively..
Q 2) Quantum numbers +1/2 and -1/2 for the electron spin represent
A) Rotation of the electron in clockwise and anti clockwise directio nrespectively
B) Rotation of the electron in anticlockwise and clockwise direction respectively
C) Magnetic moment of the electron pointing up and down respectively
D) two quantum mechanical spin states which have no classical analogue.
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UP 0 DOWN 0 0 4
4 Answers
1radial nodes is given by .... n - l - 1
so for 3 s = 2
2p = 2 - 1 - 1 = 0
