Alfred Werner was a Swiss chemist (1866-1919) who pioneered the understanding of coordination compounds. His contributions include formulating ideas about their structures and introducing the concepts of primary and secondary valences.

Exciting electrons from lower to higher energy d orbitals corresponds to the absorption of light, with the absorbed light’s frequency determining the observed color. The nature of the ligand, particularly in aqueous solutions where water molecules act as ligands, influences ...

The ‘spin-only’ formula, µ = √n(n+2), helps calculate magnetic moments based on the number of unpaired electrons. Experimental data for first-row transition metal ions, mainly in hydrated forms, align with these calculations.

The magnetic moment increases with the number of unpaired electrons, making it a useful indicator of unpaired electrons in atoms, molecules, or ions. The observed magnetic moment correlates with the number of unpaired electrons.

The magnetic moment for compounds with unpaired electrons is calculated using the ‘spin-only’ formula: µ = √n(n+2), where n is the number of unpaired electrons. This formula, based on the number of unpaired electrons, helps determine the magnetic moment in ...