Arrange the electrons present in the 4d, 3d, 4p and 3p orbitals in order of increasing energiesa)(3p) < (3d) < (4p) < (4d).b)(4d) < (4p) < (3p) < (3d)c)(4p) < (4d) < (3p) < (3d)d)(3d) < (3p) < (4p) < (4d)Correct answer is option 'A'. Can you explain this answer?

Question

Arrange the electrons present in the 4d, 3d, 4p and 3p orbitals in order of increasing energiesa)(3p) &#60; (3d) &#60; (4p) &#60; (4d).b)(4d) &#60; (4p) &#60; (3p) &#60; (3d)c)(4p) &#60; (4d) &#60; (3p) &#60; (3d)d)(3d) &#60; (3p) &#60; (4p) &#60; (4d)Correct answer is option 'A'. Can you explain this answer?

Answer

Energy of orbital is determined by n+l value. The orbital having higher n+l value will have higher energy. If n+l value is same then orbital having higher n value will have higher energy.

Answer

As acc. to aufbau's rule electrons are filled as the no. of shells increases nd we have filled p orbital firstly just bcs p orbital are more penetrate then d orbital to the nucleus

Answer

The arrangement of electrons in different orbitals is determined by their relative energies. The energy level of an orbital depends on its principal quantum number (n) and the azimuthal quantum number (l).

1. Explanation of the orbitals:
- The 4d orbital has a principal quantum number (n) of 4 and an azimuthal quantum number (l) of 2.
- The 3d orbital has a principal quantum number (n) of 3 and an azimuthal quantum number (l) of 2.
- The 4p orbital has a principal quantum number (n) of 4 and an azimuthal quantum number (l) of 1.
- The 3p orbital has a principal quantum number (n) of 3 and an azimuthal quantum number (l) of 1.

2. Explanation of the order of increasing energies:
- The energy of an orbital increases with increasing principal quantum number (n). Therefore, the 4d orbital has a higher energy than the 3d orbital because 4 > 3.
- Among orbitals with the same principal quantum number (n), the energy increases with increasing azimuthal quantum number (l). Therefore, the 4p orbital has a higher energy than the 4d orbital because 1 > 2, and the 3p orbital has a higher energy than the 3d orbital because 1 > 2.

3. Arrangement of electrons in order of increasing energies:
Based on the above explanations, the correct arrangement of electrons in the 4d, 3d, 4p, and 3p orbitals in order of increasing energies is:

a) (3p) (3d) (4p) (4d)

This means that the 3p orbital has the lowest energy, followed by the 3d orbital, then the 4p orbital, and finally the 4d orbital, which has the highest energy.

Note: The arrangement of electrons in orbitals is determined by the Aufbau principle, which states that electrons fill the lowest energy orbitals first before moving to higher energy orbitals.

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