Q3. Nickel atom can lose two electrons to form Ni²+ ion. The atomic number of nickel is 28. From which orbital will nickel lose two electrons?

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Abhishek Mishra

2 years ago

Answer. Ni atom’s electronic configuration is [Ar]18 3d8 4s2. It will lose two electrons from the 4s orbital to form Ni 2+ with the electronic configuration [Ar]18 3d8 4s0.

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