PHYSICAClass 12 Chemistry simulations · The d- and f-Block Elements
Colour and magnetism of 3d ions
Choose a 3d transition-metal ion and see its colour in water, its d-electron count and spin-only magnetic moment.
What to notice
Ions with partly filled d orbitals are coloured and paramagnetic; d⁰ and d¹⁰ ions (Sc³⁺, Zn²⁺) are colourless and diamagnetic.
Key relation
μ = √(n(n + 2)) BM (n = number of unpaired electrons)
Try this
Which ion has the largest magnetic moment?
What you can change
- Ion: choose Sc³⁺, Ti³⁺, V³⁺, Cr³⁺, Mn²⁺, Fe²⁺, Fe³⁺, Co²⁺, …
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