J. J. Thomson’s early atomic model ultimately failed mainly because it?

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1. J. J. Thomson’s early atomic model ultimately failed mainly because it?

Gave no account of an atom’s discrete energy levels

Incorrectly described the atom as electrically neutral overall

Failed to mention electrons at all

Actually had no real shortcomings

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Thomson’s ‘plum pudding’ model couldn’t explain the discrete, sharply defined spectral lines atoms produce, since it lacked any concept of quantised energy levels.