Chemistry, asked by pardhu6920, 1 year ago

But Cu ka atomic no. 29 hai na to uska valency 2+ kaise hua! explain me

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Answered by Arya4012

because it's electronic configuration Hain [Ar]4s¹, 3d^10 for stability one e goes to 3d from 4s after one e outers it will be stable but the ionic configuration is unstable so......

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