Question

give the electron configuration for lead. you must use the noble gas configuration (the shortcut) xe 5s² valence electrons

Explanation:

Step1: Identify noble - gas core

Lead (Pb) has an atomic number of 82. The noble gas before lead is xenon (Xe) with an atomic number of 54. So, we start with [Xe].

Step2: Fill remaining electrons

After [Xe], we need to account for 82 - 54=28 more electrons. The next sub - shells are filled as follows: 4f¹⁴, 5d¹⁰, 6s², 6p².

Answer:

[Xe]4f¹⁴5d¹⁰6s²6p²; 4