which is the noble - gas notation for lead (pb)?\nrn6s²4f¹⁴5d¹⁰6p²\nrn6s²5d¹⁰6p²\nxe6s²4f¹⁴5d¹⁰6p²\nxe6s²5d¹⁰…

Brief Explanations:

Lead (Pb) has an atomic number of 82. The noble - gas that precedes it closest in the periodic table is radon (Rn) with an atomic number of 86. We start with the noble - gas core of Rn. Then we add the remaining electrons according to the Aufbau principle. The electron configuration after [Rn] is $6s^{2}4f^{14}5d^{10}6p^{2}$.

Answer:

[Rn]$6s^{2}4f^{14}5d^{10}6p^{2}$