NEET > Inorganic Chemistry for NEET > Electronic Configuration of the d-Block Elements
Electronic Configuration of the d-Block Elements Video Lecture - Inorganic Chemistry for NEET
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FAQs on Electronic Configuration of the d-Block Elements Video Lecture - Inorganic Chemistry for NEET
| 1. What is the electronic configuration of d-block elements? |  |
Ans. The electronic configuration of d-block elements is characterized by the filling of the 3d and 4s orbitals. The general electronic configuration for these elements is [noble gas] (n-1)d1-10 ns1-2, where n represents the principal quantum number.
| 2. How do you determine the electronic configuration of d-block elements? | |
Ans. To determine the electronic configuration of d-block elements, you need to know the atomic number of the element. Starting from the beginning of the periodic table, fill the 3d orbitals before the 4s orbitals. The number of electrons in each orbital follows the Aufbau principle and the Pauli exclusion principle.
| 3. Why does the 4s orbital fill before the 3d orbital in d-block elements? | |
Ans. The 4s orbital fills before the 3d orbital in d-block elements due to the energy levels of the orbitals. The 4s orbital has a slightly lower energy level compared to the 3d orbital. According to the Aufbau principle, lower energy orbitals are filled before higher energy orbitals.
| 4. What is the maximum number of electrons that can occupy the 3d orbital? | |
Ans. The 3d orbital can hold a maximum of 10 electrons. Each d orbital (3dx2-y2, 3dz2, 3dxy, 3dxz, and 3dyz) can accommodate up to 2 electrons, resulting in a total of 10 electrons in the 3d orbital.
| 5. How does the electronic configuration of d-block elements affect their chemical properties? | |
Ans. The electronic configuration of d-block elements plays a crucial role in determining their chemical properties. The partially filled d orbitals allow for various oxidation states and the formation of complex compounds. The presence of unpaired electrons in the d orbitals also contributes to their magnetic properties.
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