Which is the noble-gas notation for lead (Pb)?

Lead has 82 electrons. Starting from xenon, which accounts for 54 electrons, the remaining 28 fill 6s², 4f¹⁴, 5d¹⁰, and 6p², giving [Xe]6s²4f¹⁴5d¹⁰6p². Thus, the correct choice is C, [Xe]6s²4f¹⁴5d¹⁰6p².

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