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The number of 2p electrons having spin quantum numbers= -1/2 are:
(1) 6
(2) 0
(3) 2
(4) 3
Ans: 3
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
If the velocity of hydrogen molecule is5*10^4 cm/sec tjen its de broglie wavelength is
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