Question

what is the noble gas electron configuration for polonium?
xe 6s² 5d¹⁰ 6p⁴
xe 6s² 4f¹⁴ 5d¹⁰ 6p⁴
ne 3s² 3p³
xe 6s² 6p⁴

Explanation:

Polonium (Po) has an atomic number of 84. Xenon (Xe) is the noble gas with the closest lower atomic number (54), so we use [Xe] as the core. We then fill the remaining 30 electrons: first the 6s orbital (2 electrons), then the 4f orbital (14 electrons), followed by the 5d orbital (10 electrons), and finally the 6p orbital with the remaining 4 electrons.

Answer:

[Xe] 6s² 4f¹⁴ 5d¹⁰ 6p⁴