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Asked: 2022-04-13T03:49:51+00:00 In:

Predict the ground-state electron configuration of each ion. Use the abbreviated noble gas notation.

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Predict the ground-state electron configuration of each ion. Use the abbreviated noble gas notation. 

a) Ru2+

b) W3+

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Electron Configuration

Electron configuration can be described as the process of allocating electrons in an atom to the appropriate energies or orbitals, in ascending in the order of their energy levels. The electrons are distributed across the s, p as well as d and orbitals in f, depending on the energy level of their orbitals.

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    a) Ru Atomic number = 44 , so electron configuration = [Kr] 4d7 5s1

    We get Ru2+ by removing 2 valance electrons from the above atom.

    Electron configuration Ru2+ =[ Kr] 4d6 

    b) W Atomic number = 774 so electron configuration = [Xe] 4f14 5d4 6s2

    We get W3+ by removing the 3 valance electrons from the above atom.

    W3+ electron configuration : [Xe] 4f14 5d3

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