ELECTRONIC CONFIGURATION

Arrange the following orbitals in order of increasing energy.

3dxy, 2px, 3dyz, 4pz, 3pz, 4dxy, 3py, 2py, 3s, 4s, 2s, 1s

• 1s , 2s , 2px, 2py , 3s , 3pz, 3py , 4s , 3dxy, 3dyz , 4pz , 4dxy

• 1s, 2s, 2px, 2py, 3s, 3pz, 3py, 3dxy, 3dyz, 4s, 4pz, 4dxy,

• 1s < 2s < 2px, 2py < 3s < 3pz, 3py < 4s < 3dxy, 3dyz < 4pz < 4dxy

• 1s< 2s < 2px, 2py < 3s < 3pz, 3py < 3dxy, 3dyz < 4s < 4pz < 4dxy

Fill in the blank:

According to Aufbau principle;

Electron must occupy orbitals of ______(a)__________ energy first before

________(b)___________ energy.

• (a) higher

  (b) lower

• (a) lower

  (b) higher

• (a) singly

  (b) paired

• (a) paired

  (b) singly

spdf notation of Cl with 17 proton number is

(letak spacebar)

Actual electronic configuration of Cr with 24 number of protons are

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The actual electronic configuration of copper is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰ which is differs from the expected configuration. This due to stability of ----- filled 3d orbital

The electronic configuration of ₂₆Fe²⁺ is

Which principle/rules does not alligns with the electronic configuration

• Aftbau's principle

• Hund's rule

• Pauli exclusion principle