A sodium atom (Z = 11) contains 11 protons in its nucleus. Strictly speaking, the Bohr...

A sodium atom (Z = 11) contains 11 protons in its nucleus. Strictly speaking, the Bohr model does not apply, because the neutral atom contains 11 electrons instead of a single electron. However, we can apply the model to the outermost electron as an approximation, provided that we use an effective value Z_effective rather than 11 for the number of protons in the nucleus.

(a) The ionization energy for the outermost electron in a sodium atom is 5.1 eV. Use the Bohr model with Z = Z_effective to calculate a value for Z_effective.
Z_effective =

(b) Using Z = 11, determine the corresponding value for the radius r of the outermost Bohr orbit.
r =   ---Select--- m^-1 m N J s

(c) Using the value calculated for Z_effective in part (a), determine the corresponding radius r of the outermost Bohr orbit.
r =   ---Select--- N J s m^-1 m

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genius_generous answered 1 year ago

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