EASY
11th CBSE
IMPORTANT
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The probability of finding the electron in the px orbital is

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Important Questions on Structure of Atom

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11th CBSE
IMPORTANT
In the ground state, an element has 13 electrons in its M-shell. The element is
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11th CBSE
IMPORTANT
Which of the following statements are correct ?
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11th CBSE
IMPORTANT
The energy of an electron in the first Bohr orbit of H atom is -13.6 eV. The possible energy value (s) of the excited state(s) for electron in Bohr orbits of hydrogen is(are)
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11th CBSE
IMPORTANT
The energy of the electron in the third orbit will be
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11th CBSE
IMPORTANT
The radius of the third orbit of hydrogen atom will be
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11th CBSE
IMPORTANT
The velocity of the electron in the third orbit of hydrogen atom will be
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11th CBSE
IMPORTANT
If the electron absorbs 12.1 eV of energy, it will jump to the orbit
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11th CBSE
IMPORTANT
  Column I   Column II
A Light has dual character p de Broglie
B Electrons have dual character q Einstein
C

N has electronic configuration

1s 22s 22px1 2py1 2pz1 and 1s 2 2s 2 2px 2 2py2 

r Aufbau
D 4s orbital is filled first than 3d s Hunds
E Basis of Quantum mechanics t Schrodinger