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