1.
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2.
Which of the following is not permissible arrangement of electrons in an atom?
3.
The orientation of an atomic orbital is governed by
4.
If uncertainty in position and momentum are equal, then uncertainty in velocity is :
5.
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6.
The following quantum numbers are possible for how many orbital(s) n = 3, l = 2, m = + 2?
7.
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8.
In hydrogen atom, energy of first excited state is -3.4 eV. Then, KE of same orbit of hydrogen atom is
9.
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10.
Which of the following is isoelectronic?
11.
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12.
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13.
The total energy of the electron in the hydrogen atom in the ground state is -13.6 eV. The KE of this electron is :
14.
Maximum number of electrons in a sub-shell of an atom is determined by the following:
15.
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