Chemistry, asked by piara7713, 11 months ago

Why au- is stable and cu- doesn't exist

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Answered by gauravarduino

Answer:

Au(II) ion is less stable and undergoes disproportionation to Au(I) and Au(III) even though the Cu(II) and Ag(II) ions are comparatively more stable. ... The d8 system, Au(III) is stable as the electron from the dx2-y2 is removed.

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