Of the ions Co²⁺, Sc³⁺ and Cr³⁺ which one will give coloured aqueous solutions and will have each of them respond to a magnetic field and why? [Atomic numbers, Co = 27, Sc = 21, Cr = 24]

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Anonymous · Accepted Answer

The transition element exhibit color and magnetic property due to unpaired electron.Co²⁺ has electronic configuration [Ar] 4s⁰3d⁷ has seven unpaired electron, Cr³⁺ has [Ar] 4s⁰3d³ has three unpaired electrons, therefore, they will form coloured solution whereas Sc³⁺ [Ar] 4s⁰3d⁰ has no unpaired electron, it will form colourless solution.
Co²⁺ and Cr³⁺ will be attracted by magnetic field due to presence of unpaired electrons whereas Sc³⁺ will be repelled by magnetic field because it does not have unpaired electrons.

Of the ions Co²⁺, Sc³⁺ and Cr³⁺ which one will give coloured aqueous solutions and will have each of them respond to a magnetic field and why? [Atomic numbers, Co = 27, Sc = 21, Cr = 24]

The d-And-f-Block Elements

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Of the ions Co2+, Sc3+ and Cr3+ which one will give coloured aqueous solutions and will have each of them respond to a magnetic field and why? [Atomic numbers, Co = 27, Sc = 21, Cr = 24]

The d-And-f-Block Elements

Chemistry I

Of the ions Co²⁺, Sc³⁺ and Cr³⁺ which one will give coloured aqueous solutions and will have each of them respond to a magnetic field and why? [Atomic numbers, Co = 27, Sc = 21, Cr = 24]