Take element Z = 83 from the periodic table. Ionize it 82 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron as well as the energy of the electron when it is in the n = 8 principal state in the ion above?

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A: n = 2  L = 0  Identify the sub - shell which have above quantum number = ?

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A: Number of electrons = number of protons = atomic number

Q: electrons

A: Dear student I have given answer to your question in the image format.

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Q: Write the electron configuration for ground state bromine (Br, 35 electrons) and its common ion.

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A: Thus 2nd option is correct✅

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