Maximum number of electrons in a subshell with l = 3 and n = 4 is:

1. 14

2. 16

3. 10

4. 12

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 84%
From NCERT
AIPMT - 2012
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The correct set of four quantum numbers for the valence electron of a rubidium atom (Z =37) is: 

1. \(5,1,1,+ {1 \over2}\) 2. \(6,0,0,+ {1 \over2}\)
3. \(5,0,0,+ {1 \over2}\) 4. \(5,1,0,+ {1 \over2}\)
Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 80%
From NCERT
AIPMT - 2012
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The total number of atomic orbitals in fourth energy level of an atom is:

1.  16
2.  32
3.  4
4.  8

Subtopic:  Bohr's Theory |
 76%
From NCERT
AIPMT - 2011
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The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between their wavelengths i.e., λ1 and λ2 will be:

1.  λ1=2λ2

2.  λ1=4λ2

3.  λ1=12λ2

4.  λ1=λ2

Subtopic:  Bohr's Theory |
 85%
From NCERT
AIPMT - 2011
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If n = 6, the correct sequence for the filling of electrons will be: 

1. ns  n-1 d  n-2 f  np

2. ns - n-2 f  np  n-1 d

3. ns - np  n-1d  n-2 f

4. ns  n-2 f  n-1 d  np

Subtopic:  AUFBAU Principle |
 64%
From NCERT
AIPMT - 2011
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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 |
 68%
From NCERT
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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If uncertainty in position and momentum are equal, then the uncertainty in velocity is:

1. 12mhπ

2. h2π

3. 1mhπ

4. hπ

Subtopic:  Heisenberg Uncertainty Principle |
 80%
From NCERT
AIPMT - 2008
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The measurement of the electron position is associated with
uncertainty in momentum,
which is equal to 1 x 10-18 g cm s-1.
The uncertainty in electron velocity will be
(mass of an electron is 9 x 10-28 g)-
 

1. 2 x 109 cm s-1
2. 1 x 109 cm s-1
3. 1 x 105 cms-1
4. 1 x 1011 cm s-1

Subtopic:  Heisenberg Uncertainty Principle |
 70%
From NCERT
AIPMT - 2008
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Consider the following sets of quantum numbers: 
 
Which of the following sets of quantum numbers is not possible?

1. ii, iii, and iv
2. i, ii, iii, and iv
3. ii, iv and v
4. i and iii

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 86%
From NCERT
AIPMT - 2007
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