# The rule used to determine the maximum number of electrons in a subshell of an atom is: 1. 4l+2 2. 2l+1 3. 4l-2 4. 2n2

Subtopic:  Shell & Subshell |
67%
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AIPMT - 2009
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The incorrect set of quantum numbers among the following is:

1. n= 4, l= 0, m= 0, s= -1/2
2. n= 5, l= 3, m= 0, s= +1/2
3. n= 3, l= 2, m= -3, s= -1/2
4. n= 3, l= 2, m= 2, s= -1/2

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
86%
From NCERT
AIPMT - 2009
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The orbital diagram in which both Pauli's exclusion principle and Hund's rule are violated is:

1.

2.

3.

4.

Subtopic:  Pauli's Exclusion Principle & Hund's Rule |
68%
From NCERT
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The correct order of the total number of nodes of atomic orbitals is:

1.  4f > 6s > 5d

2.  6s > 5d > 4f

3.  4f > 5d > 6s

4.  5d > 4f > 6s

Subtopic:  Nodal Plane |
73%
From NCERT
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Correct statement among the following is:

1.  Number of angular nodes = n - l - 1

2.  Number of radial nodes = l

3.  Total number of nodes = n -1

4.  All of the above

Subtopic:  Nodal Plane |
61%
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Orbitals having two spherical nodes are:

 1 2s 2 4s 3 3d 4 6f
Subtopic:  Nodal Plane |
From NCERT
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The wave mechanical model of the atom depends upon

1.  De-Broglie concept of dual nature of electron

2.  Heisenberg uncertainty principle

3.  Schrodinger's principle

4.  All

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
70%
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The incorrect statement regarding the characteristics of X-rays is :

1. The radiation can ionize the gas

2. It causes a fluorescence effect on ZnS

3. It is deflected by electric and magnetic fields

4. Have a shorter wavelength than ultraviolet rays

Subtopic:  Introduction of Atomic Structure |
53%
From NCERT
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For any H-like system, the ratio of velocities of I, II & III orbit i.e.,  will be:

1.  1 : 2 : 3

2.  1 : 1/2 : 1/3

3.  3 : 2 : 1

4.  1 : 1 : 1

Subtopic:  Bohr's Theory |
72%
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In photoelectric effect, the kinetic energy of photoelectrons increases linearly with the:

1.  Wavelength of incident light.

2.  Frequency of incident light.

3.  Velocity of incident light.

4.  Atomic mass of an element.

Subtopic:  Photo Electric Effect |
84%
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