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A hydrogenic orbital with radial function of the form rαe−βr and ϕ-part as e−3iϕ corresponds to 
  • a)
    n > 4, l > 3, m = 3
  • b)
    n = 4, l = 3, m = -3
  • c)
    n = 4, l > 3, m = 3
  • d)
    n > 4, l = 3, m = -3
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A hydrogenic orbital with radial function of the formrαe−&...
(Given: radial function = rαe−βr and ϕ=e−3iϕ)
From Schrodinger equation for H-atom the azimuthal angular part (Φ) is:
Φ(ϕ)=e(±imϕ)
Where,
Φ(ϕ) represents the azimuthal angular part of the wave function.
(1/√(2π)) is the normalization constant.
e(imϕ) is the complex exponential function.
m is the magnetic quantum number, where m can be positive or negative including zero.
ϕ is the azimuthal angle
Now, let's analyze the options:
(1) n > 4, l > 3, m = 3
Here, n>4 and l>3, assume n = 5 and l = 5 for m = 3. The combination of values of n, l, m is typically not found in a stable atomic system because combining a high 'n' with a high 'l' suggests an electron in an extremely high-energy, complex orbital with many radial and angular nodes. Therefore, this option is not correct.
(2) n = 4, l = 3, m = -3
Here, n = 4 and l = 3, indicates that the electron is in the fourth energy level or shell in an f orbital. m = -3, which means the electron is in an f orbital with a specific orientation. Therefore, this option is correct.
(3) n = 4, l > 3, m = 3
Here, n = 4 and l>3 shows combination of relatively high energy state (n = 4) with a complex orbital type (l > 3) that has complex angular distributions (e.g., f orbitals). Such a combination is not observed in stable atomic systems. Rather, electrons tend to occupy lower energy levels with simpler orbitals before filling higher energy levels with more complex orbitals. This makes the combination of n = 4 and l > 3 unusual for stable atomic configurations. Therefore, this option is not correct. 
(4) n > 4, l = 3, m = -3
Here, n>4 and l = 3, also combines higher energy state with complex angular distribution (eg. f orbital) which makes it unusual for stable atomic system. Therefore, this option is incorrect.
Therefore, the radial and angular function of hydrogenic orbital corresponds to n = 4, l = 3, m = -3.
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Community Answer
A hydrogenic orbital with radial function of the formrαe−&...


Explanation:

Hydrogenic Orbital:
- A hydrogenic orbital is a wavefunction that describes the behavior of an electron in a hydrogen-like atom (one electron system).
- It is characterized by three quantum numbers: n (principal quantum number), l (azimuthal quantum number), and m (magnetic quantum number).

Given Radial Function:
- The radial function given in the question is of the form rαe^(-βr).
- This form is typically associated with the radial part of the wavefunction of a hydrogenic orbital.

Corresponding Quantum Numbers:
- For the given radial function rαe^(-βr), the quantum numbers can be determined as follows:
- n = 4 (from the exponential term)
- l = 3 (from the radial part r^3)
- m = -3 (since the function is symmetric about the z-axis)

Correct Answer:
- The correct correspondence of the quantum numbers for the given radial function is:
- n = 4, l = 3, m = -3
- Therefore, option B (n = 4, l = 3, m = -3) is the correct choice based on the radial function provided.
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A hydrogenic orbital with radial function of the formrαe−βr and-part ase−3icorresponds toa)n > 4, l > 3, m = 3b)n = 4, l = 3, m = -3c)n = 4, l > 3, m = 3d)n > 4, l = 3, m = -3Correct answer is option 'B'. Can you explain this answer?
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